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Prof. dr. L.A. (Loet) Leydesdorff

Faculty of Social and Behavioural Sciences
CW : Docenten & onderzoekers CW
Photographer: Bram Belloni

Visiting address
  • Nieuwe Achtergracht 166
Postal address
  • Postbus 15791
    1001 NG Amsterdam
Contact details
  • Profile

    Loet Leydesdorff (Ph.D. Sociology, M.A. Philosophy, and M.Sc. Biochemistry) is Professor in the Dynamics of Scientific Communication and Technological Innovation at the Amsterdam School of Communications Research ( ASCoR ) of the University of Amsterdam . He is Honorary Professor of SPRU - the Science and Technology Policy Research Unit of the University of Sussex; Visiting Professor of the Institute of Scientific and Technical Information of China ( ISTIC ) in Beijing; and of the School of Management of Birkbeck, University of London.

    Leydesdorff has published extensively in systems theory, social network analysis, scientometrics, and the sociology of innovation (see for a list of publications at http://www.leydesdorff.net/list.htm ).In 2006, he published The Knowledge-Based Economy: Modeled, Measured, Simulated ( Boca Rotan , FL : Universal Publishers). Previous monographs are: A Sociological Theory of Communication: The Self-Organization of the Knowledge-Based Society (2001) and The Challenge of Scientometrics: The development, measurement, and self-organization of scientific communications (1995).

    With Henry Etzkowitz, he initiated a series of workshops, conferences, and special issues about the Triple Helix of University-Industry-Government Relations . He received the Derek de Solla Price Award for Scientometrics and Informetrics in 2003 and held "The City of Lausanne " Honor Chair at the School of Economics , Université de Lausanne, in 2005.In 2007, he was Vice-President of Computing Anticipatory Systems (CASYS'07). Since 2014, Clarivate/Thomson Reuters lists him as a highly-cited author at https://clarivate.com/hcr/

    homepage at http://www.leydesdorff.net -------------
  • Publications

    2020

    2019

    2018

    2017

    2016

    • Bauer, J., Leydesdorff, L., & Bornmann, L. (2016). Highly cited papers in Library and Information Science (LIS): Authors, institutions, and network structures. Journal of the Association for Information Science and Technology, 67(12), 3095-3100. https://doi.org/10.1002/asi.23568 [details]
    • Bornmann, L., Thor, A., Marx, W., & Leydesdorff, L. (2016). Identifying seminal works most important for research fields: Software for the Reference Publication Year Spectroscopy (RPYS). COLLNET Journal of Scientometrics and Information Management, 10(1), 125-140. https://doi.org/10.1080/09737766.2016.1177948 [details]
    • Comins, J. A., & Leydesdorff, L. (2016). RPYS i/o: software demonstration of a web-based tool for the historiography and visualization of citation classics, sleeping beauties and research fronts. Scientometrics, 107(3), 1509-1517. https://doi.org/10.1007/s11192-016-1928-z [details]
    • Dolfsma, W., & Leydesdorff, L. (2016). Universitaire en Economische Pieken. Economisch-Statistische Berichten, 101(4742), 678-681. [details]
    • Hellsten, I., & Leydesdorff, L. (2016). The construction of interdisciplinarity: The development of the knowledge base and programmatic focus of the journal Climatic Change, 1977-2013. Journal of the Association for Information Science and Technology, 67(9), 2181-2193. https://doi.org/10.1002/asi.23528 [details]
    • Hu, X., Leydesdorff, L., & Rousseau, R. (2016). Network heterogeneity in an undirected network. In I. Ràfols, J. Molas-Gallart, E. Castro-Martínez, & R. Woolley (Eds.), 21st International Conference on Science and Technology Indicators : book of proceedings: STI Conference 2016, València : Peripheries, frontiers and beyond : 14-16 September 2016, Universitat Politècnica de València (pp. 1117-1121). València: Editorial Universitat Politècnica de València. https://doi.org/10.4995/STI2016.2016.4543 [details]
    • Leydesdorff, L. (2016). Die Mathematik und andere Kurzsprachen: Über John von Neumann, The Computer and the Brain (1958). In D. Baecker (Ed.), Schlüsselwerke der Systemtheorie. - 2., erweiterte und neu gestaltete Auflage (pp. 253-261). Wiesbaden: Springer VS. https://doi.org/10.1007/978-3-531-20004-0_20 [details]
    • Leydesdorff, L. (2016). Information, Meaning, and Intellectual Organization in Networks of Inter-Human Communication. In C. R. Sugimoto (Ed.), Theories of Informetrics and Scholarly Communication: A Festschrift in Honor of Blaise Cronin (pp. 280-303). Berlin/Boston MA: De Gruyter. https://doi.org/10.1515/9783110308464-017 [details]
    • Leydesdorff, L., & Bornmann, L. (2016). The operationalization of "fields" as WoS subject categories (WCs) in evaluative bibliometrics: The cases of "library and information science" and "science & technology studies". Journal of the Association for Information Science and Technology, 67(3), 707-714. https://doi.org/10.1002/asi.23408 [details]
    • Leydesdorff, L., & Ivanova, I. (2016). 'Open Innovation' and 'Triple Helix' Models of Innovation: Can Synergy in Innovation Systems Be Measured? Journal of Open Innovations: Technology, Market and Complexity, 2, [11]. https://doi.org/10.1186/s40852-016-0039-7 [details]
    • Leydesdorff, L., Bornmann, L., & Zhou, P. (2016). Construction of a Pragmatic Base Line for Journal Classifications and Maps Based on Aggregated Journal-Journal Citation Relations. Journal of Informetrics, 10(4), 902-918. https://doi.org/10.1016/j.joi.2016.07.008 [details]
    • Leydesdorff, L., Bornmann, L., Comins, J. A., & Milojević, S. (2016). Citations: Indicators of Quality? The Impact Fallacy. Frontiers in Research Metrics and Analytics, 1, [1]. https://doi.org/10.3389/frma.2016.00001 [details]
    • Leydesdorff, L., Bornmann, L., Comins, J., Marx, W., & Thor, A. (2016). Referenced Publication Year Spectroscopy (RPYS) and Algorithmic Historiography: The Bibliometric Reconstruction of András Schubert’s Œuvre. In W. Glänzel, & B. Schlemmer (Eds.), András Schubert--A World of Models and Metrics: A Festschrift on the Occasion of his 70th Birthday (pp. 79-96). (ISSI Festschrift Series; Vol. 12-S). Leuven: ISSI. [details]
    • Leydesdorff, L., Comins, J. A., Sorensen, A. A., Bornmann, L., & Hellsten, I. (2016). Cited References and Medical Subject Headings (MeSH) as Two Different Knowledge Representations: Clustering and Mappings at the Paper Level. Scientometrics, 109(3), 2077-2091. https://doi.org/10.1007/s11192-016-2119-7 [details]
    • Leydesdorff, L., Etzkowitz, H., & Kushnir, D. (2016). Globalization and Growth of U.S. University Patenting (2009-2014). Industry and Higher Education, 30(4), 257-266. https://doi.org/10.1177/0950422216660253 [details]
    • Leydesdorff, L., Heimeriks, G., & Rotolo, D. (2016). Journal portfolio analysis for countries, cities, and organizations: Maps and comparisons. Journal of the Association for Information Science and Technology, 67(3), 741-748. https://doi.org/10.1002/asi.23551 [details]
    • Leydesdorff, L., Wouters, P., & Bornmann, L. (2016). Professional and citizen bibliometrics: complementarities and ambivalences in the development and use of indicators: a state-of-the-art report. Scientometrics, 109(3), 2129-2150. https://doi.org/10.1007/s11192-016-2150-8 [details]
    • Leydesdorff, L., de Moya-Anegón, F., & de Nooy, W. (2016). Aggregated journal–journal citation relations in scopus and web of science matched and compared in terms of networks, maps, and interactive overlays. Journal of the Association for Information Science and Technology, 67(9), 2194-2211. https://doi.org/10.1002/asi.23372 [details]
    • Leydesdorff, L., de Nooy, W., & Bornmann, L. (2016). The Power-weakness Ratios (PWR) as a Journal Indicator: Testing the “Tournaments” Metaphor in Citation Impact Studies. Journal of Data and Information Science, 1(3), 6-26. https://doi.org/10.20309/jdis.201617 [details]
    • Park, H. W., Yoon, J., & Leydesdorff, L. (2016). The normalization of co-authorship networks in the bibliometric evaluation: the government stimulation programs of China and Korea. Scientometrics, 109(2), 1017-1036. https://doi.org/10.1007/s11192-016-1978-2 [details]
    • Petersen, A. M., Rotolo, D., & Leydesdorff, L. (2016). A triple helix model of medical innovation: Supply, demand, and technological capabilities in terms of Medical Subject Headings. Research Policy, 45(3), 666-681. https://doi.org/10.1016/j.respol.2015.12.004 [details]
    • Rahman, A. I. M. J., Guns, R., Leydesdorff, L., & Engels, T. C. E. (2016). Measuring the match between evaluators and evaluees: cognitive distances between panel members and research groups at the journal level. Scientometrics, 109(3), 1639-1663. https://doi.org/10.1007/s11192-016-2132-x [details]
    • Thor, A., Marx, W., Leydesdorff, L., & Bornmann, L. (2016). Introducing CitedReferencesExplorer (CRExplorer): A program for reference publication year spectroscopy with cited references standardization. Journal of Informetrics, 10(2), 503-515. https://doi.org/10.1016/j.joi.2016.02.005 [details]
    • Thor, A., Marx, W., Leydesdorff, L., & Bornmann, L. (2016). New features of CitedReferencesExplorer (CRExplorer). Scientometrics, 109(3), 2049-2051. https://doi.org/10.1007/s11192-016-2082-3 [details]
    • Vélez-Cuartas, G., Lucio-Arias, D., & Leydesdorff, L. (2016). Regional and global science: Publications from Latin America and the Caribbean in the SciELO Citation Index and the Web of Science. El Profesional de la Información, 25(1), 35-46. https://doi.org/10.3145/epi.2016.ene.05 [details]
    • Zhou, P., & Leydesdorff, L. (2016). A Comparative Study of the Citation Impact of Chinese Journals with Government Priority Support. Frontiers in Research Metrics and Analytics, 1, [3]. https://doi.org/10.3389/frma.2016.00003 [details]
    • Zhou, P., Tijssen, R., & Leydesdorff, L. (2016). University-Industry Collaboration in China and the USA: A Bibliometric Comparison. PLoS ONE, 11(11), [e0165277]. https://doi.org/10.1371/journal.pone.0165277 [details]
    • Zhou, Q., & Leydesdorff, L. (2016). The normalization of occurrence and Co-occurrence matrices in bibliometrics using Cosine similarities and Ochiai coefficients. Journal of the Association for Information Science and Technology, 67(11), 2805-2814. https://doi.org/10.1002/asi.23603 [details]

    2015

    • Bornmann, L., & Leydesdorff, L. (2015). Does quality and content matter for citedness? A comparison with para-textual factors and over time. Journal of Informetrics, 9(3), 419-429. https://doi.org/10.1016/j.joi.2015.03.001 [details]
    • Bornmann, L., & Leydesdorff, L. (2015). Topical connections between the institutions within an organisation (institutional co-authorships, direct citation links and co-citations). Scientometrics, 102(1), 455-463. https://doi.org/10.1007/s11192-014-1425-1 [details]
    • Bornmann, L., Wagner, C., & Leydesdorff, L. (2015). BRICS countries and scientific excellence: a bibliometric analysis of most frequently cited papers. Journal of the Association for Information Science and Technology, 66(7), 1507-1513. https://doi.org/10.1002/asi.23333 [details]
    • Haunschild, R., Bornmann, L., & Leydesdorff, L. (2015). Networks of reader and country status: an analysis of Mendeley reader statistics. PeerJ Computer Science, 1, [e32]. https://doi.org/10.7717/peerj-cs.32 [details]
    • Ivanova, I. A., & Leydesdorff, L. (2015). Knowledge-generating efficiency in innovation systems: the acceleration of technological paradigm changes with increasing complexity. Technological Forecasting & Social Change, 96, 254-265. https://doi.org/10.1016/j.techfore.2015.04.001 [details]
    • Johnson, M. W., & Leydesdorff, L. (2015). Beer's viable system model and Luhmann's communication theory: ‘organizations’ from the perspective of meta-games. Systems Research and Behavioral Science, 32(3), 266-282. https://doi.org/10.1002/sres.2222 [details]
    • Kozak, M., Bornmann, L., & Leydesdorff, L. (2015). How have the Eastern European countries of the former Warsaw Pact developed since 1990? A bibliometric study. Scientometrics, 102(2), 1101-1117. https://doi.org/10.1007/s11192-014-1439-8 [details]
    • Lengyel, B., & Leydesdorff, L. (2015). The effects of FDI on innovation systems in Hungarian regions: where is the synergy generated? Regional Statistics, 5(1), 3-24. https://doi.org/10.15196/RS05101 [details]
    • Lengyel, B., Sebestyén, T., & Leydesdorff, L. (2015). Challenges for regional innovation policies in Central and Eastern Europe: spatial concentration and foreign control of US patenting. Science and Public Policy, 42(1), 1-14. https://doi.org/10.1093/scipol/sct087 [details]
    • Leydesdorff, L. (2015). Can intellectual processes in the sciences also be simulated? The anticipation and visualization of possible future states. Scientometrics, 105(3), 2197-2214. https://doi.org/10.1007/s11192-015-1630-6 [details]
    • Leydesdorff, L. (2015). Can technology life-cycles be indicated by diversity in patent classifications? The crucial role of variety. Scientometrics, 105(3), 1441-1451. https://doi.org/10.1007/s11192-015-1639-x [details]
    • Leydesdorff, L. (2015). The sciences are discursive constructs: the communication perspective as an empirical philosophy of science. In L. Cantoni, & J. A. Danowski (Eds.), Communication and technology (pp. 553-562). (Handbooks of Communication Science; No. 5). Berlin: De Gruyter Mouton. https://doi.org/10.1515/9783110271355-032 [details]
    • Leydesdorff, L., & Milojević, S. (2015). Scientometrics. In J. D. Wright (Ed.), International encyclopedia of the social & behavioral sciences (2 ed., Vol. 21, pp. 322-327). Amsterdam: Elsevier. https://doi.org/10.1016/B978-0-08-097086-8.85030-8 [details]
    • Leydesdorff, L., & Milojević, S. (2015). The citation impact of German sociology journals: some problems with the use of scientometric indicators in journal and research evaluations. Soziale Welt, 66(2), 193-204. https://doi.org/10.5771/0038-6073-2015-2-193 [details]
    • Leydesdorff, L., Alkemade, F., Heimeriks, G., & Hoekstra, R. (2015). Patents as instruments for exploring innovation dynamics: Geographic and technological perspectives on "photovoltaic cells". Scientometrics, 102(1), 629-651. https://doi.org/10.1007/s11192-014-1447-8 [details]
    • Leydesdorff, L., Perevodchikov, E., & Uvarov, A. (2015). Measuring triple-helix synergy in the Russian innovation systems at regional, provincial, and national levels. Journal of the Association for Information Science and Technology, 66(6), 1229-1238. https://doi.org/10.1002/asi.23258 [details]
    • Leydesdorff, L., Petersen, A., & Ivanova, I. (2015). The generation and self-organization of meaning in the communication of information and redundancy. In Proceedings of the 2nd International Electronic Conference on Entropy and its Applications: 15-30 November 2015 [paper C005] (Sciforum Electronic Conference Series; Vol. 2). Basel: Sciforum. https://doi.org/10.3390/ecea-2-C005 [details]
    • Leydesdorff, L., de Moya-Anegón, F., & Guerrero-Bote, V. P. (2015). Journal maps, interactive overlays, and the measurement of interdisciplinarity on the basis of Scopus data (1996-2012). Journal of the Association for Information Science and Technology, 66(5), 1001-1016. https://doi.org/10.1002/asi.23243 [details]
    • Mingers, J., & Leydesdorff, L. (2015). A review of theory and practice in scientometrics. European Journal of Operational Research, 246(1), 1-19. https://doi.org/10.1016/j.ejor.2015.04.002 [details]
    • Mingers, J., & Leydesdorff, L. (2015). Identifying research fields within business and management: a journal cross-citation analysis. Journal of the Operational Research Society, 66(8), 1370-1384. https://doi.org/10.1057/jors.2014.113 [details]
    • Rotolo, D., & Leydesdorff, L. (2015). Matching Medline/PubMed data with Web of Science: a routine in R language. Journal of the Association for Information Science and Technology, 66(10), 2155-2159. https://doi.org/10.1002/asi.23385 [details]
    • Wagner, C. S., Bornmann, L., & Leydesdorff, L. (2015). Recent developments in China-U.S. cooperation in science. Minerva, 53(3), 199-214. https://doi.org/10.1007/s11024-015-9273-6 [details]
    • Wagner, C. S., Park, H. W., & Leydesdorff, L. (2015). The continuing growth of global cooperation networks in research: a conundrum for national governments. PLoS ONE, 10(7), [e0131816]. https://doi.org/10.1371/journal.pone.0131816 [details]
    • Zhou, Q., Leng, F., & Leydesdorff, L. (2015). The reflection of hierarchical cluster analysis of co-occurrence matrices in SPSS. Chinese Journal of Library and Information Science, 8(2), 11-24. [details]
    • de Nooy, W., & Leydesdorff, L. (2015). The dynamics of triads in aggregated journal-journal citation relations: specialty developments at the above-journal level. Journal of Informetrics, 9(3), 542-554. https://doi.org/10.1016/j.joi.2015.04.005 [details]

    2014

    • Adams, J., Gurney, K., Hook, D., & Leydesdorff, L. (2014). International collaboration clusters in Africa. Scientometrics, 98(1), 547-556. https://doi.org/10.1007/s11192-013-1060-2 [details]
    • Baumgartner, S. E., & Leydesdorff, L. (2014). Group-based trajectory modeling (GBMT) of citations in scholarly literature: dynamic qualities of "transient" and "sticky knowledge claims". Journal of the Association for Information Science and Technology, 65(4), 797-811. https://doi.org/10.1002/asi.23009 [details]
    • Bornmann, L., & Leydesdorff, L. (2014). On the meaningful and non-meaningful use of reference sets in bibliometrics. Journal of Informetrics, 8(1), 273-275. https://doi.org/10.1016/j.joi.2013.12.006 [details]
    • Bornmann, L., & Leydesdorff, L. (2014). Scientometrics in a changing research landscape. EMBO Reports, 15(12), 1228-1232. https://doi.org/10.15252/embr.201439608 [details]
    • Bornmann, L., Leydesdorff, L., & Wang, J. (2014). How to improve the prediction based on citation impact percentiles for years shortly after the publication date? Journal of Informetrics, 8(1), 175-180. https://doi.org/10.1016/j.joi.2013.11.005 [details]
    • Chen, C., & Leydesdorff, L. (2014). Patterns of connections and movements in dual-map overlays: a new method of publication portfolio analysis. Journal of the Association for Information Science and Technology, 65(2), 334-351. https://doi.org/10.1002/asi.22968 [details]
    • Deakin, M., & Leydesdorff, L. (2014). The triple helix model of smart cities: a neo-evolutionary perspective. In M. Deakin (Ed.), Smart cities: governing, modelling and analysing the transition (pp. 134-149). London: Routledge. [details]
    • Ivanova, I. A., & Leydesdorff, L. (2014). A simulation model of the Triple Helix of university-industry-government relations and the decomposition of the redundancy. Scientometrics, 99(3), 927-948. https://doi.org/10.1007/s11192-014-1241-7 [details]
    • Ivanova, I. A., & Leydesdorff, L. (2014). Rotational symmetry and the transformation of innovation systems in a Triple Helix of university-industry-government relations. Technological Forecasting & Social Change, 86, 143-156. https://doi.org/10.1016/j.techfore.2013.08.022 [details]
    • Lawton Smith, H., & Leydesdorff, L. (2014). The Triple Helix in the context of global change: dynamics and challenges. Prometheus, 32(4), 321-336. https://doi.org/10.1080/08109028.2014.972135 [details]
    • Leydesdorff, L. (2014). Hyperincursive cogitata and incursive cogitantes: scholarly discourse as a strongly anticipatory system. International Journal of Computing Anticipatory Systems, 28, 173-186. [details]
    • Leydesdorff, L. (2014). Science visualization and discursive knowledge. In B. Cronin, & C. R. Sugimoto (Eds.), Beyond bibliometrics: harnessing multidimensional indicators of scholarly impact (pp. 167-186). Cambridge, Mass.: MIT Press. [details]
    • Leydesdorff, L., & Ahrweiler, P. (2014). In search of a network theory of innovations: relations, positions, and perspectives. Journal of the Association for Information Science and Technology, 65(11), 2359-2374. https://doi.org/10.1002/asi.23127 [details]
    • Leydesdorff, L., & Goldstone, R. L. (2014). Interdisciplinarity at the journal and specialty level: the changing knowledge bases of the journal Cognitive Science. Journal of the Association for Information Science and Technology, 65(1), 164-177. https://doi.org/10.1002/asi.22953 [details]
    • Leydesdorff, L., & Ivanova, I. A. (2014). Mutual redundancies in interhuman communication systems: steps towards a calculus of processing meaning. Journal of the Association for Information Science and Technology, 65(2), 386-399. https://doi.org/10.1002/asi.22973 [details]
    • Leydesdorff, L., & Park, H. W. (2014). Can synergy in Triple Helix relations be quantified? A review of the development of the Triple Helix indicator. Triple Helix, 1(1), 4. https://doi.org/10.1186/s40604-014-0004-z [details]
    • Leydesdorff, L., & Zhou, P. (2014). Measuring the knowledge-based economy of China in terms of synergy among technological, organizational, and geographic attributes of firms. Scientometrics, 98(3), 1703-1719. https://doi.org/10.1007/s11192-013-1179-1 [details]
    • Leydesdorff, L., Bornmann, L., Marx, W., & Milojević, S. (2014). Referenced Publication Years Spectroscopy applied to iMetrics: Scientometrics, Journal of Informetrics, and a relevant subset of JASIST. Journal of Informetrics, 8(1), 162-174. https://doi.org/10.1016/j.joi.2013.11.006 [details]
    • Leydesdorff, L., Johnson, M., & Ivanova, I. A. (2014). The communication of expectations and individual understanding: redundancy as reduction of uncertainty, and the processing of meaning. Kybernetes, 43(9/10), 1362-1371. https://doi.org/10.1108/K-07-2014-0151 [details]
    • Leydesdorff, L., Khan, G. F., & Bornmann, L. (2014). The generation of large networks from web of science data. El Profesional de la Información, 23(6), 589-593. https://doi.org/10.3145/epi.2014.nov.05 [details]
    • Leydesdorff, L., Kushnir, D., & Rafols, I. (2014). Interactive overlay maps for US Patent (USPTO) data based on International Patent Classifications (IPC). Scientometrics, 98(3), 1583-1599. https://doi.org/10.1007/s11192-012-0923-2 [details]
    • Leydesdorff, L., Park, H. W., & Lengyel, B. (2014). A routine for measuring synergy in university-industry-government relations: mutual information as a Triple-Helix and Quadruple-Helix indicator. Scientometrics, 99(1), 27-35. https://doi.org/10.1007/s11192-013-1079-4 [details]
    • Leydesdorff, L., Park, H. W., & Wagner, C. (2014). International coauthorship relations in the Social Sciences Citation Index: is internationalization leading the network? Journal of the Association for Information Science and Technology, 65(10), 2111-2126. https://doi.org/10.1002/asi.23102 [details]
    • Leydesdorff, L., Wagner, C. S., & Bornmann, L. (2014). The European Union, China, and the United States in the top-1% and top-10% layers of most-frequently cited publications: competition and collaborations. Journal of Informetrics, 8(3), 606-617. https://doi.org/10.1016/j.joi.2014.05.002 [details]
    • Li, L. Z., Leydesdorff, L., Nioka, S., Sun, N., & Garfield, E. (2014). Citation analysis of the scientific publications of Britton Chance in ISI citation indexes. Journal of Innovative Optical Health Sciences, 7(2), 1430003. https://doi.org/10.1142/S1793545814300031 [details]
    • Marx, W., Bornmann, L., Barth, A., & Leydesdorff, L. (2014). Detecting the historical roots of research fields by reference publication year spectroscopy (RPYS). Journal of the Association for Information Science and Technology, 65(4), 751-764. https://doi.org/10.1002/asi.23089 [details]
    • Ye, F. Y., & Leydesdorff, L. (2014). The "academic trace" of the performance matrix: a mathematical synthesis of the h‐index and the integrated impact indicator (I3). Journal of the Association for Information Science and Technology, 65(4), 742-750. https://doi.org/10.1002/asi.23075 [details]
    • Ye, Y., Leydesdorff, L., & Wu, Y. (2014). San luo xuan mo xing ji qi liang hua fen zhi fang fa yan tao. China Soft Science, 2014(11), 199-207. [details]

    2013

    • Bornmann, L., & Leydesdorff, L. (2013). Macro-indicators of citation impacts of six prolific countries: InCites data and the statistical significance of trends. PLoS ONE, 8(2), e56768. https://doi.org/10.1371/journal.pone.0056768 [details]
    • Bornmann, L., & Leydesdorff, L. (2013). Statistical tests and research assessments: a comment on Schneider (2012). Journal of the American Society for information Science and Technology, 64(6), 1306-1308. https://doi.org/10.1002/asi.22860 [details]
    • Bornmann, L., Leydesdorff, L., & Mutz, R. (2013). The use of percentiles and percentile rank classes in the analysis of bibliometric data: Opportunities and limits. Journal of Informetrics, 7(1), 158-165. https://doi.org/10.1016/j.joi.2012.10.001 [details]
    • Bornmann, L., Leydesdorff, L., & Wang, J. (2013). Which percentile-based approach should be preferred for calculating normalized citation impact values? An empirical comparison of five approaches including a newly developed citation-rank approach (P100). Journal of Informetrics, 7(4), 933-944. https://doi.org/10.1016/j.joi.2013.09.003 [details]
    • Leydesdorff, L. (2013). An evaluation of impacts in "Nanoscience & nanotechnology:" Steps towards standards for citation analysis. Scientometrics, 94(1), 35-55. https://doi.org/10.1007/s11192-012-0750-5 [details]
    • Leydesdorff, L. (2013). Does the specification of uncertainty hurt the progress of scientometrics? Journal of Informetrics, 7(2), 292-293. https://doi.org/10.1016/j.joi.2012.11.007 [details]
    • Leydesdorff, L. (2013). Sociological and communication-theoretical perspectives on the commercialization of the sciences. Science & Education, 22(10), 2511-2527. https://doi.org/10.1007/s11191-012-9458-4 [details]
    • Leydesdorff, L. (2013). Statistics for the dynamic analysis of scientometric data: The evolution of the sciences in terms of trajectories and regimes. Scientometrics, 96(3), 731-741. https://doi.org/10.1007/s11192-012-0917-0 [details]
    • Leydesdorff, L. (2013). The revised SNIP indicator of Elsevier's Scopus. Journal of Informetrics, 7(4), 859-860. https://doi.org/10.1016/j.joi.2013.08.003 [details]
    • Leydesdorff, L. (2013). Triple helix of university-industry government relations. In E. G. Carayannis (Ed.), Encyclopedia of creativity, invention, innovation and entrepreneurship (pp. 1844-1851). New York: Springer. https://doi.org/10.1007/978-1-4614-3858-8_452 [details]
    • Leydesdorff, L., & Meyer, M. (2013). A reply to Etzkowitz' comments to Leydesdorff and Martin (2010): Technology transfer and the end of the Bayh-Dole effect. Scientometrics, 97(3), 927-934. https://doi.org/10.1007/s11192-013-0997-5 [details]
    • Leydesdorff, L., & Opthof, T. (2013). Citation analysis with medical subject Headings (MeSH) using the Web of Knowledge: A new routine. Journal of the American Society for information Science and Technology, 64(5), 1076-1080. https://doi.org/10.1002/asi.22770 [details]
    • Leydesdorff, L., & Strand, Ø. (2013). The Swedish system of innovation: Regional synergies in a knowledge-based economy. Journal of the American Society for information Science and Technology, 64(9), 1890-1902. https://doi.org/10.1002/asi.22895 [details]
    • Leydesdorff, L., Carley, S., & Rafols, I. (2013). Global maps of science based on the new Web-of-Science categories. Scientometrics, 94(2), 589-593. https://doi.org/10.1007/s11192-012-0784-8 [details]
    • Leydesdorff, L., Rafols, I., & Chen, C. (2013). Interactive overlays of journals and the measurement of interdisciplinarity on the basis of aggregated journal-journal citations. Journal of the American Society for information Science and Technology, 64(12), 2573-2586. https://doi.org/10.1002/asi.22946 [details]
    • Leydesdorff, L., Rotolo, D., & de Nooy, W. (2013). Innovation as a nonlinear process, the scientometric perspective, and the specification of an 'innovation opportunities explorer'. Technology Analysis & Strategic Management, 25(6), 641-653. https://doi.org/10.1080/09537325.2013.801948 [details]
    • Leydesdorff, L., Wagner, C. S., Park, H. W., & Adams, J. (2013). International collaboration in science: The global map and the network. El Profesional de la Información, 22(1), 87-94. https://doi.org/10.3145/epi.2013.ene.12 [details]
    • Leydesdorff, L., Zhou, P., & Bornmann, L. (2013). How can journal impact factors be normalized across fields of science? An assessment in terms of percentile ranks and fractional counts. Journal of the American Society for information Science and Technology, 64(1), 96-107. https://doi.org/10.1002/asi.22765 [details]
    • Milojević, S., & Leydesdorff, L. (2013). Information metrics (iMetrics): A research specialty with a socio-cognitive identity? Scientometrics, 95(1), 141-157. https://doi.org/10.1007/s11192-012-0861-z [details]
    • Park, H. W., & Leydesdorff, L. (2013). Decomposing social and semantic networks in emerging "big data" research. Journal of Informetrics, 7(3), 756-766. https://doi.org/10.1016/j.joi.2013.05.004 [details]
    • Strand, Ø., & Leydesdorff, L. (2013). Where is synergy indicated in the Norwegian innovation system? Triple-Helix relations among technology, organization, and geography. Technological Forecasting & Social Change, 80(3), 471-484. https://doi.org/10.1016/j.techfore.2012.08.010 [details]
    • Venditti, M., Reale, E., & Leydesdorff, L. (2013). Disclosure of university research to third parties: A non-market perspective on an Italian university. Science and Public Policy, 40(6), 792-800. https://doi.org/10.1093/scipol/sct027 [details]
    • Yan, E., Ding, Y., Cronin, B., & Leydesdorff, L. (2013). A bird's-eye view of scientific trading: Dependency relations among fields of science. Journal of Informetrics, 7(2), 249-264. https://doi.org/10.1016/j.joi.2012.11.008 [details]
    • Ye, F. Y., Yu, S. S., & Leydesdorff, L. (2013). The Triple Helix of university-industry-government relations at the country level and Its dynamic evolution under the pressures of globalization. Journal of the American Society for information Science and Technology, 64(11), 2317-2325. https://doi.org/10.1002/asi.22931 [details]
    • van Heur, B., Leydesdorff, L., & Wyatt, S. (2013). Turning to ontology in STS? Turning to STS through ‘ontology’? Social Studies of Science, 43(3), 341-362. https://doi.org/10.1177/0306312712458144 [details]

    2012

    • Abbasi, A., Hossain, L., & Leydesdorff, L. (2012). Betweenness centrality as a driver of preferential attachment in the evolution of research collaboration networks. Journal of Informetrics, 6(3), 403-412. https://doi.org/10.1016/j.joi.2012.01.002 [details]
    • Bornmann, L., & Leydesdorff, L. (2012). Which are the best performing regions in information science in terms of highly cited papers? Some improvements of our previous mapping approaches. Journal of Informetrics, 6(2), 336-345. https://doi.org/10.1016/j.joi.2011.11.002 [details]
    • Bornmann, L., Leydesdorff, L., & Krampen, G. (2012). Which are the "best" cities for psychology research worldwide? Europe's Journal of Psychology, 8(4), 535-546. https://doi.org/10.5964/ejop.v8i4.482 [details]
    • Bornmann, L., de Moya Anegón, F., & Leydesdorff, L. (2012). The new excellence indicator in the world report of the SCImago Institutions Rankings 2011. Journal of Informetrics, 6(2), 333-335. https://doi.org/10.1016/j.joi.2011.11.006 [details]
    • Heimeriks, G., & Leydesdorff, L. (2012). Emerging search regimes: measuring co-evolutions among research, science, and society. Technology Analysis & Strategic Management, 24(1), 51-67. https://doi.org/10.1080/09537325.2012.643562 [details]
    • Kwon, K-S., Park, H. W., So, M., & Leydesdorff, L. (2012). Has globalization strengthened South Korea’s national research system? National and international dynamics of the Triple Helix of scientific co-authorship relationships in South Korea. Scientometrics, 90(1), 163-176. https://doi.org/10.1007/s11192-011-0512-9 [details]
    • Leydesdorff, L. (2012). Alternatives to the journal impact factor: I3 and the top-10% (or top-25%?) of the most-highly cited papers. Scientometrics, 92(2), 355-365. https://doi.org/10.1007/s11192-012-0660-6 [details]
    • Leydesdorff, L. (2012). Author's Response: The continuous reconstruction of a pluralistic society as an order of expectations. Constructivist Foundations, 8(1), 97-99. [details]
    • Leydesdorff, L. (2012). Is communication emerging or sui generis? Constructivist Foundations, 8(1), 111-112. [details]
    • Leydesdorff, L. (2012). McCall's area transformation versus the integrated impact indicator (I3). Journal of Informetrics, 6(4), 513-514. https://doi.org/10.1016/j.joi.2012.03.002 [details]
    • Leydesdorff, L. (2012). Radical constructivism and radical constructedness: Luhmann's sociology of semantics, organizations, and self-organization. Constructivist Foundations, 8(1), 85-92. [details]
    • Leydesdorff, L. (2012). The triple helix, quadruple helix, ..., and an N-tuple of helices: explanatory models for analyzing the knowledge-based economy? Journal of the Knowledge Economy, 3(1), 25-35. https://doi.org/10.1007/s13132-011-0049-4 [details]
    • Leydesdorff, L. (2012). World shares of publications of the USA, EU-27, and China compared and predicted using the new web of science interface versus scopus. El Profesional de la Información, 21(1), 43-49. https://doi.org/10.3145/epi.2012.ene.06 [details]
    • Leydesdorff, L., & Bornmann, L. (2012). Mapping (USPTO) patent data using overlays to Google Maps. Journal of the American Society for information Science and Technology, 63(7), 1442-1458. https://doi.org/10.1002/asi.22666 [details]
    • Leydesdorff, L., & Bornmann, L. (2012). Testing differences statistically with the Leiden ranking. Scientometrics, 92(3), 781-783. https://doi.org/10.1007/s11192-012-0636-6 [details]
    • Leydesdorff, L., & Felt, U. (2012). Edited volumes, monographs and book chapters in the Book Citation Index (BKCI) and Science Citation Index (SCI, SoSCI, A&HCI). Journal of Scientometric Research, 1(1), 28-34. https://doi.org/10.5530/jscires.2012.1.7 [details]
    • Leydesdorff, L., & Opthof, T. (2012). A rejoinder on energy versus impact indicators. Scientometrics, 90(2), 745-748. https://doi.org/10.1007/s11192-011-0502-y [details]
    • Leydesdorff, L., & Rafols, I. (2012). Interactive overlays: a new method for generating global journal maps from Web-of-Science data. Journal of Informetrics, 6(2), 318-332. https://doi.org/10.1016/j.joi.2011.11.003 [details]
    • Leydesdorff, L., Rotolo, D., & Rafols, I. (2012). Bibliometric perspectives on medical innovation using the medical subject headings of PubMed. Journal of the American Society for information Science and Technology, 63(11), 2239-2253. https://doi.org/10.1002/asi.22715 [details]
    • Prathap, G., & Leydesdorff, L. (2012). The world of science according to performance indicators based on percentile ranking normalization. Journal of Scientometric Research, 1(1), 53-59. https://doi.org/10.5530/jscires.2012.1.10 [details]
    • Rafols, I., Leydesdorff, L., O'Hare, A., Nightingale, P., & Stirling, A. (2012). How journal rankings can suppress interdisciplinary research: a comparison between innovation studies and business & management. Research Policy, 41(7), 1262-1282. https://doi.org/10.1016/j.respol.2012.03.015 [details]
    • Salah, A. A. A., & Leydesdorff, L. (2012). The development of the journal environment of Leonardo. Leonardo, 45(1), 88-89. https://doi.org/10.1162/LEON_a_00346 [details]
    • Shelton, R. D., & Leydesdorff, L. (2012). Publish or patent: bibliometric evidence for empirical trade-offs in national funding strategies. Journal of the American Society for information Science and Technology, 63(3), 498-511. https://doi.org/10.1002/asi.21677 [details]
    • Vlieger, E., & Leydesdorff, L. (2012). Visualization and analysis of frames in collections of messages: Content analysis and the measurement of meaning. In M. Mora, O. Gelman, A. L. Steenkamp, & M. S. Raisinghani (Eds.), Research methodologies, innovations and philosophies in software systems engineering and information systems (pp. 321-339). Hershey, PA: Information Science Reference. https://doi.org/10.4018/978-1-4666-0179-6.ch016 [details]
    • Wagner, C. S., & Leydesdorff, L. (2012). An integrated impact indicator: a new definition of 'impact' with policy relevance. Research Evaluation, 21(3), 183-188. https://doi.org/10.1093/reseval/rvs012 [details]

    2011

    • Bornmann, L., & Leydesdorff, L. (2011). Which cities produce more excellent papers than can be expected? A new mapping approach, using Google Maps, based on statistical significance testing. Journal of the American Society for information Science and Technology, 62(10), 1954-1962. https://doi.org/10.1002/asi.21611 [details]
    • Bornmann, L., Leydesdorff, L., Walch-Solimena, C., & Ettl, C. (2011). Mapping excellence in the geography of science: an approach based on Scopus data. Journal of Informetrics, 5(4), 537-546. https://doi.org/10.1016/j.joi.2011.05.005 [details]
    • Dolfsma, W., & Leydesdorff, L. (2011). Innovation systems as patent networks: the Netherlands, India and nanotech. Innovation: Management, Policy & Practice, 13(3), 311-326. https://doi.org/10.5172/impp.2011.13.3.311 [details]
    • Lengyel, B., & Leydesdorff, L. (2011). Regional innovation systems in Hungary: the failing synergy at the national level. Regional Studies, 45(5), 677-693. https://doi.org/10.1080/00343401003614274 [details]
    • Leydesdorff, L. (2011). "Structuration" by intellectual organization: the configuration of knowledge in relations among structural components in networks of science. Scientometrics, 88(2), 499-520. https://doi.org/10.1007/s11192-011-0397-7 [details]
    • Leydesdorff, L. (2011). 'Meaning' as a sociological concept: a review of the modeling, mapping and simulation of the communication of knowledge and meaning. Information sur les Sciences Sociales, 50(3-4), 391-413. https://doi.org/10.1177/0539018411411021 [details]
    • Leydesdorff, L., & Bornmann, L. (2011). How fractional counting of citations affects the impact factor: normalization in terms of differences in citation potentials among fields of science. Journal of the American Society for information Science and Technology, 62(2), 217-229. https://doi.org/10.1002/asi.21450 [details]
    • Leydesdorff, L., & Bornmann, L. (2011). Integrated impact indicators compared with impact factors: An alternative research design with policy implications. Journal of the American Society for information Science and Technology, 62(11), 2133-2146. https://doi.org/10.1002/asi.21609 [details]
    • Leydesdorff, L., & Deakin, M. (2011). The triple-helix model of smart cities: a neo-evolutionary perspective. Journal of Urban Technology, 18(2), 53-63. https://doi.org/10.1080/10630732.2011.601111 [details]
    • Leydesdorff, L., & Opthof, T. (2011). Remaining problems with the "New Crown Indicator" (MNCS) of the CWTS. Journal of Informetrics, 5(1), 224-225. https://doi.org/10.1016/j.joi.2010.10.003 [details]
    • Leydesdorff, L., & Rafols, I. (2011). Indicators of the interdisciplinarity of journals: diversity, centrality, and citations. Journal of Informetrics, 5(1), 87-100. https://doi.org/10.1016/j.joi.2010.09.002 [details]
    • Leydesdorff, L., & Rafols, I. (2011). Local emergence and global diffusion of research technologies: an exploration of patterns of network formation. Journal of the American Society for information Science and Technology, 62(5), 846-860. https://doi.org/10.1002/asi.21509 [details]
    • Leydesdorff, L., & Shin, J. C. (2011). How to evaluate universities in terms of their relative citation impacts: fractional counting of citations and the normalization of differences among disciplines. Journal of the American Society for information Science and Technology, 62(6), 1146-1155. https://doi.org/10.1002/asi.21511 [details]
    • Leydesdorff, L., & Vlieger, E. (2011). Visualizing meaning: steps towards visualization of the communication of meaning. SemiotiX, XN-5. [details]
    • Leydesdorff, L., & Welbers, K. (2011). The semantic mapping of words and co-words in contexts. Journal of Informetrics, 5(3), 469-475. https://doi.org/10.1016/j.joi.2011.01.008 [details]
    • Leydesdorff, L., Bornmann, L., Mutz, R., & Opthof, T. (2011). Turning the tables in citation analysis one more time: principles for comparing sets of documents. Journal of the American Society for information Science and Technology, 62(7), 1370-1381. https://doi.org/10.1002/asi.21534 [details]
    • Leydesdorff, L., Hammarfelt, B., & Salah, A. (2011). The structure of the Arts & Humanities Citation Index: a mapping on the basis of aggregated citations among 1,157 journals. Journal of the American Society for information Science and Technology, 62(12), 2414-2426. https://doi.org/10.1002/asi.21636 [details]
    • Opthof, T., & Leydesdorff, L. (2011). A comment to the paper by Waltman et al., Scientometrics, 87, 467-481, 2011. Scientometrics, 88(3), 1011-1016. https://doi.org/10.1007/s11192-011-0424-8 [details]
    • Rousseau, R., & Leydesdorff, L. (2011). Simple arithmetic versus intuitive understanding: the case of the impact factor. ISSI Newsletter, 7(1), 10-14. [details]
    • Shi, A., & Leydesdorff, L. (2011). What do the cited and citing environments reveal about advances in atmospheric physics? Advances in Atmospheric Sciences, 28(1), 238-244. https://doi.org/10.1007/s00376-010-1000-5 [details]
    • Vlieger, E., & Leydesdorff, L. (2011). Content analysis and the measurement of meaning: the visualization of frames in collections of messages. Public Journal of Semiotics, 3(1), 28-50. http://pjos.org/issues/pjos-3-1.pdf [details]
    • Zhou, P., & Leydesdorff, L. (2011). Fractional counting of citations in research evaluation: a cross- and interdisciplinary assessment of the Tsinghua University in Beijing. Journal of Informetrics, 5(3), 360-368. https://doi.org/10.1016/j.joi.2011.01.010 [details]

    2010

    • Bornmann, L., Leydesdorff, L., & Van den Besselaar, P. (2010). A meta-evaluation of scientific research proposals: different ways of comparing rejected to awarded applications. Journal of Informetrics, 4(3), 211-220. https://doi.org/10.1016/j.joi.2009.10.004 [details]
    • Bornmann, L., de Moya Anegón, F., & Leydesdorff, L. (2010). Do scientific advancements lean on the shoulders of giants? A bibliometric investigation of the Ortega hypothesis. PLoS ONE, 5(10), e13327. https://doi.org/10.1371/journal.pone.0013327 [details]
    • Dolfsma, W., & Leydesdorff, L. (2010). The citation field of evolutionary economics. Journal of Evolutionary Economics, 20(5), 645-664. https://doi.org/10.1007/s00191-010-0172-6 [details]
    • Halffman, W., & Leydesdorff, L. (2010). Is inequality among universities increasing? Gini coefficients and the elusive rise of elite universities. Minerva, 48(1), 55-72. https://doi.org/10.1007/s11024-010-9141-3 [details]
    • Hellsten, I., Dawson, J., & Leydesdorff, L. (2010). Implicit media frames: automated analysis of public debate on artificial sweeteners. Public Understanding of Science, 19(5), 590-608. https://doi.org/10.1177/0963662509343136 [details]
    • Leydesdorff, L. (2010). Communicative competencies and the structuration of expectations: the creative tension between Habermas’ critical theory and Luhmann’s social systems theory. Complicity, 7(2), 66-76. [details]
    • Leydesdorff, L. (2010). Eugene Garfield and algorithmic historiography: co-words, co-authors, and journal names. Annals of Library and Information Studies, 57(3), 248-260. [details]
    • Leydesdorff, L. (2010). Journals. In D. H. Guston (Ed.), Encyclopedia of nanoscience and society (pp. 380-381). London: Sage. [details]
    • Leydesdorff, L. (2010). Luhmann reconsidered: towards an empirical research programme in the sociology of communication? In C. B. Grant (Ed.), Beyond universal pragmatics: studies in the philosophy of communication (pp. 149-173). (Interdisciplinary communication studies; No. 4). Bern: Peter Lang. [details]
    • Leydesdorff, L. (2010). Redundancy in systems which entertain a model of themselves: interaction information and the self-organization of anticipation. Entropy, 12(1), 63-79. https://doi.org/10.3390/e12010063 [details]
    • Leydesdorff, L. (2010). The communication of meaning and the structuration of expectations: Giddens' "structuration theory" and Luhmann's "self-organization". Journal of the American Society for information Science and Technology, 61(10), 2138-2150. https://doi.org/10.1002/asi.21381 [details]
    • Leydesdorff, L. (2010). The knowledge-based economy and the Triple Helix model. Annual Review of Information Science and Technology, 44, 367-417. [details]
    • Leydesdorff, L. (2010). What can heterogeneity add to the scientometric map? Steps towards algorithmic historiography. In M. Akrich, Y. Barthe, F. Muniesa, & P. Mustar (Eds.), Débordements: mélanges offerts à Michel Callon (pp. 283-289). (Collection Sciences sociales). Paris: Transvalor-Presses des Mines. [details]
    • Leydesdorff, L., & Meyer, M. (2010). The Triple Helix Model and the Knowledge-Based Economy. Dongbei Daxue Xuebao. Shehui Kexue Ban, 12(1), 11-18. [details]
    • Leydesdorff, L., & Meyer, M. (2010). The decline of university patenting and the end of the Bayh-Dole effect. Scientometrics, 83(2), 355-362. https://doi.org/10.1007/s11192-009-0001-6 [details]
    • Leydesdorff, L., & Opthof, T. (2010). Normalization at the field level: fractional counting of citations. Journal of Informetrics, 4(4), 644-646. https://doi.org/10.1016/j.joi.2010.05.003 [details]
    • Leydesdorff, L., & Opthof, T. (2010). Scopus’s Source Normalized Impact per Paper (SNIP) versus a Journal Impact Factor based on Fractional Counting of Citations. Journal of the American Society for information Science and Technology, 61(11), 2365-2369. https://doi.org/10.1002/asi.21371 [details]
    • Leydesdorff, L., & Persson, O. (2010). Mapping the geography of science: distribution patterns and networks of relations among cities and institutes. Journal of the American Society for information Science and Technology, 61(8), 1622-1634. https://doi.org/10.1002/asi.21347 [details]
    • Leydesdorff, L., & Salah, A. A. A. (2010). Maps on the basis of the Arts & Humanities Citation Index: the journals Leonardo and Art Journal versus "Digital Humanities" as a topic. Journal of the American Society for information Science and Technology, 61(4), 787-801. https://doi.org/10.1002/asi.21303 [details]
    • Leydesdorff, L., & Zawdie, G. (2010). The triple helix perspective of innovation systems. Technology Analysis & Strategic Management, 22(7), 789-804. https://doi.org/10.1080/09537325.2010.511142 [details]
    • Leydesdorff, L., Dolfsma, W., & van der Panne, G. (2010). Measuring the knowledge base of an economy in terms of triple-helix relations among 'technology, organization, and territory'. In R. Viale, & H. Etzkowitz (Eds.), The capitalization of knowledge: a triple helix of university-industry-government (pp. 291-311). Cheltenham: Edward Elgar. [details]
    • Leydesdorff, L., de Moya-Anegon, F., & Guerrero-Bote, V. P. (2010). Journal maps on the basis of Scopus data: a comparison with the Journal Citation Reports of the ISI. Journal of the American Society for information Science and Technology, 61(2), 352-369. https://doi.org/10.1002/asi.21250 [details]
    • Opthof, T., & Leydesdorff, L. (2010). Caveats for the journal and field normalizations in the CWTS ("Leiden") evaluations of research performance. Journal of Informetrics, 4(3), 423-430. https://doi.org/10.1016/j.joi.2010.02.003 [details]
    • Park, H., & Leydesdorff, L. (2010). Longitudinal trends in networks of university-industry-government relations in South Korea: the role of programmatic incentives. Research Policy, 39(5), 640-649. https://doi.org/10.1016/j.respol.2010.02.009 [details]
    • Rafols, I., Porter, A. L., & Leydesdorff, L. (2010). Science overlay maps: a new tool for research policy and library management. Journal of the American Society for information Science and Technology, 61(9), 1871-1887. https://doi.org/10.1002/asi.21368 [details]
    • Zhou, P., Su, X., & Leydesdorff, L. (2010). A comparative study on communication structures of Chinese journals in the social sciences. Journal of the American Society for information Science and Technology, 61(7), 1360-1376. https://doi.org/10.1002/asi.21343 [details]

    2009

    • Arencibia-Jorge, R., Leydesdorff, L., Chinchilla-Rodríguez, Z., Rousseau, R., & Paris, S. W. (2009). Retrieval of very large numbers of items in the Web of Science: an exercise to develop accurate search strategies. El Profesional de la Información, 18(5), 529-533. https://doi.org/10.3145/epi.2009.sep.06 [details]
    • Bensman, S. J., & Leydesdorff, L. (2009). Definition and identification of journals as bibliographic and subject entities: Librarianship versus ISI Journal Citation Reports methods and their effect on citation measures. Journal of the American Society for information Science and Technology, 60(6), 1097-1117. https://doi.org/10.1002/asi.21020 [details]
    • Dolfsma, W., & Leydesdorff, L. (2009). Lock-in and break-out from technological trajectories: Modeling and policy implications. Technological Forecasting & Social Change, 76(7), 932-941. https://doi.org/10.1016/j.techfore.2009.02.004 [details]
    • Egghe, L., & Leydesdorff, L. (2009). The relation between Pearson’s correlation coefficient r and Salton’s cosine measure. Journal of the American Society for information Science and Technology, 60(5), 1027-1036. https://doi.org/10.1002/asi.21009 [details]
    • Leydesdorff, L. (2009). How are new citation-based journal indicators adding to the bibliometric toolbox? Journal of the American Society for information Science and Technology, 60(7), 1327-1336. https://doi.org/10.1002/asi.21024 [details]
    • Leydesdorff, L. (2009). Interaction information: linear and nonlinear interpretations. International Journal of General Systems, 38(6), 681-685. https://doi.org/10.1080/03081070902993038 [details]
    • Leydesdorff, L. (2009). Modelling ‘Triple Contingency’. In S. Ó Tuama (Ed.), Critical turns in critical theory: new directions in social and political thought (pp. 165-167). (International library of political studies; No. 39). London / New York: I.B. Tauris. [details]
    • Leydesdorff, L. (2009). The non-linear dynamics of meaning-processing in social systems. Information sur les Sciences Sociales, 48(1), 5-33. https://doi.org/10.1177/0539018408099635 [details]
    • Leydesdorff, L., & Franse, S. (2009). The communication of meaning in social systems. Systems Research and Behavioral Science, 26(1), 109-117. https://doi.org/10.1002/sres.921 [details]
    • Leydesdorff, L., & Probst, C. (2009). The delineation of an interdisciplinary specialty in terms of a journal set: the case of communication studies. Journal of the American Society for information Science and Technology, 60(8), 1709-1718. https://doi.org/10.1002/asi.21052 [details]
    • Leydesdorff, L., & Rafols, I. (2009). A global map of science based on the ISI subject categories. Journal of the American Society for information Science and Technology, 60(2), 348-362. https://doi.org/10.1002/asi.20967 [details]
    • Leydesdorff, L., & Sun, Y. (2009). National and international dimensions of the Triple Helix in Japan: University-industry-government versus international coauthorship relations. Journal of the American Society for information Science and Technology, 60(4), 778-788. https://doi.org/10.1002/asi.20997 [details]
    • Leydesdorff, L., & Wagner, C. S. (2009). Is the United States losing ground in science? A global perspective on the world science system. Scientometrics, 78(1), 23-36. https://doi.org/10.1007/s11192-008-1830-4 [details]
    • Leydesdorff, L., & Wagner, C. S. (2009). Macro-level indicators of the relations between research funding and research output. Journal of Informetrics, 3(4), 353-362. https://doi.org/10.1016/j.joi.2009.05.005 [details]
    • Lucio-Arias, D., & Leydesdorff, L. (2009). An indicator of research front activity: Measuring intellectual organization as uncertainty reduction in document sets. Journal of the American Society for information Science and Technology, 60(12), 2488-2498. https://doi.org/10.1002/asi.21199 [details]
    • Lucio-Arias, D., & Leydesdorff, L. (2009). The dynamics of exchanges and references among scientific texts, and the autopoiesis of discursive knowledge. Journal of Informetrics, 3(3), 262-271. https://doi.org/10.1016/j.joi.2009.03.003 [details]
    • Park, H. W., & Leydesdorff, L. (2009). Knowledge linkage structures in communication studies using citation analysis among communication journals. Scientometrics, 81(1), 157-175. https://doi.org/10.1007/s11192-009-2119-y [details]
    • Rafols, I., & Leydesdorff, L. (2009). Content-based and algorithmic classifications of journals: Perspectives on the dynamics of scientific communication and indexer effects. Journal of the American Society for information Science and Technology, 60(9), 1823-1835. https://doi.org/10.1002/asi.21086 [details]
    • Zhou, P., & Leydesdorff, L. (2009). Chemistry in China - a bibliometric view. Chimica Oggi, 27(6), 19-20, 22. [details]
    • van den Besselaar, P., & Leydesdorff, L. (2009). Past performance, peer review, and project selection: a case study in the social and behavioral sciences. Research Evaluation, 18(4), 273-288. https://doi.org/10.3152/095820209X475360 [details]

    2008

    • Dolfsma, W., & Leydesdorff, L. (2008). 'Medium-tech’ industries may be of greater importance to a local economy than ‘High-tech’ firms: new methods for measuring the knowledge base of an economic system. Medical Hypotheses, 71(3), 330-334. https://doi.org/10.1016/j.mehy.2008.04.021 [details]
    • Dolfsma, W., & Leydesdorff, L. (2008). Het Nederlandse innovatiesysteem. Economisch-Statistische Berichten, 93(4532), 214-215. [details]
    • Dolfsma, W., & Leydesdorff, L. (2008). Heterodox journals networks and ranking: journals as constituents of scientific discourse: economic heterodoxy. On the Horizon, 16(4), 214-225. https://doi.org/10.1108/10748120810912547 [details]
    • Lengyel, B., & Leydesdorff, L. (2008). A magyar gazdaság tudásalapú szervezõdésének mérése: Az innovációs rendszerek szinergiáinak térbelisége. Közgazdasági Szemle, 55(6), 522-547. [details]
    • Leydesdorff, L. (2008). Caveats for the use of citation indicators in research and journal evaluations. Journal of the American Society for information Science and Technology, 59(2), 278-287. https://doi.org/10.1002/asi.20743 [details]
    • Leydesdorff, L. (2008). Complexity and technology. In L. D. Kiel (Ed.), Encyclopedia of life support systems (EOLSS): Knowledge management, organizational intelligence and learning, and complexity (pp. 42-58). Oxford: Eolss Publishers. [details]
    • Leydesdorff, L. (2008). Complexity science and intentional systems. Educational Research Review, 3(1), 92-93. https://doi.org/10.1016/j.edurev.2008.02.002 [details]
    • Leydesdorff, L. (2008). Configurational information as potentially negative entropy: the triple helix model. Entropy, 10(4), 391-410. https://doi.org/10.3390/e10040391 [details]
    • Leydesdorff, L. (2008). On the normalization and visualization of author co-citation data: Salton's cosine versus the Jaccard index. Journal of the American Society for information Science and Technology, 59(1), 77-85. https://doi.org/10.1002/asi.20732 [details]
    • Leydesdorff, L. (2008). Patent classifications as indicators of intellectual organization. Journal of the American Society for information Science and Technology, 59(10), 1582-1597. https://doi.org/10.1002/asi.20814 [details]
    • Leydesdorff, L. (2008). The delineation of nanoscience and nanotechnology in terms of journals and patents: A most recent update. Scientometrics, 76(1), 159-167. https://doi.org/10.1007/s11192-007-1889-3 [details]
    • Leydesdorff, L., & Schank, T. (2008). Dynamic animations of journal maps: indicators of structural changes and interdisciplinary developments. Journal of the American Society for information Science and Technology, 59(11), 1810-1818. https://doi.org/10.1002/asi.20891 [details]
    • Leydesdorff, L., & Wagner, C. S. (2008). International collaboration in science and the formation of a core group. Journal of Informetrics, 2(4), 317-325. https://doi.org/10.1016/j.joi.2008.07.003 [details]
    • Leydesdorff, L., & Zhou, P. (2008). Co-word analysis using the Chinese character set. Journal of the American Society for information Science and Technology, 59(9), 1528-1530. https://doi.org/10.1002/asi.20862 [details]
    • Leydesdorff, L., Schank, T., Scharnhorst, A., & de Nooy, W. (2008). Animating the development of social networks over time using a dynamic extension of multidimensional scaling. El Profesional de la Información, 17(6), 611-626. https://doi.org/10.3145/epi.2008.nov.04 [details]
    • Lucio-Arias, D., & Leydesdorff, L. (2008). Main-path analysis and path-dependent transitions in HistCite™-based historiograms. Journal of the American Society for information Science and Technology, 59(12), 1948-1962. https://doi.org/10.1002/asi.20903 [details]
    • Park, H. W., & Leydesdorff, L. (2008). Korean journals in the Science Citation Index: What do they reveal about the intellectual structure of S & T in Korea? Scientometrics, 75(3), 439-462. https://doi.org/10.1007/s11192-007-1862-1
    • Zhou, P., & Leydesdorff, L. (2008). A comparative analysis of Chinese and international aggregated citation relations among journals. In H. S. Rowen, M. Gong Hancock, & W. F. Miller (Eds.), Greater China's quest for innovation (pp. 269-279). Stanford, CA, US: Walter H Shorenstein Asia Pacific Research Center, Brookings Institution Press. [details]

    2007

    • Bornmann, L., Leydesdorff, L., & Marx, W. (2007). Citation Environment of Angewandte Chemie. Chimia, 61(3), 104-109. https://doi.org/10.2533/chimia.2007.104 [details]
    • Kostoff, R. N., del Río, J. A., Cortés, H. D., Smith, C., Smith, A., Wagner, C., ... Tshiteya, R. (2007). Clustering methodologies for identifying country core competencies. Journal of Information Science, 33(1), 21-40. https://doi.org/10.1177/0165551506067124 [details]
    • Leydesdorff, L. (2007). Environment and Planning B: Planning and Design as a Journal: The Interdisciplinarity of its Environment and the Citation Impact. Environment & Planning B : Planning & Design, 34(5), 826-838. https://doi.org/10.1068/b3307t [details]
    • Leydesdorff, L. (2007). Betweenness centrality as an indicator of the interdisciplinarity of scientific journals. Journal of the American Society for information Science and Technology, 58(9), 1303-1309. https://doi.org/10.1002/asi.20614 [details]
    • Leydesdorff, L. (2007). Mapping Interdisciplinarity at the Interfaces between the Science Citation Index and the Social Science Citation Index. Scientometrics, 71(3), 391-405. https://doi.org/10.1007/s11192-007-1694-z [details]
    • Leydesdorff, L. (2007). Scientific communication and cognitive codification: Social systems theory and the sociology of scientific knowledge. European Journal of Social Theory, 10(3), 375-388. [details]
    • Leydesdorff, L. (2007). Should co-occurrence data be normalized? A rejoinder. Journal of the American Society for information Science and Technology, 58(14), 2411-2413. https://doi.org/10.1002/asi.20691
    • Leydesdorff, L. (2007). Visualization of the citation impact environments of scientific journals: An online mapping exercise. Journal of the American Society for information Science and Technology, 58(1), 25-38. https://doi.org/10.1002/asi.20406 [details]
    • Leydesdorff, L., & Meyer, M. (2007). The scientometrics of a Triple Helix of university-Industry-government relations: Introduction to the topical issue. Scientometrics, 70(2), 207-222. https://doi.org/10.1007/s11192-007-0200-y [details]
    • Leydesdorff, L., & Zhou, P. (2007). Nanotechnology as a field of science: Its delineation in terms of journals and patents. Scientometrics, 70(3), 693-713. https://doi.org/10.1007/s11192-007-0308-0 [details]
    • Lucio-Arias, D., & Leydesdorff, L. (2007). Knowledge emergence in scientific communication: from “fullerenes” to “nanotubes”. Scientometrics, 70(3), 603-632. https://doi.org/10.1007/s11192-007-0304-4 [details]
    • Zhou, P., & Leydesdorff, L. (2007). A comparison between the China Scientific and Technical Papers and Citations Database and the Science Citation Index in terms of journal hierarchies and interjournal citation relations. Journal of the American Society for information Science and Technology, 58(2), 223-236. https://doi.org/10.1002/asi.20475 [details]
    • Zhou, P., & Leydesdorff, L. (2007). Analysis of the citation environments of journals in computer science. Journal of the China Society for Scientific and Technical Information, 26(6), 923-933. [details]
    • Zhou, P., & Leydesdorff, L. (2007). The citation impacts and citation environments of Chinese journals in mathematics. Scientometrics, 72(2), 185-200. https://doi.org/10.1007/s11192-007-1713-0 [details]

    2006

    • Cooke, P., & Leydesdorff, L. (2006). Regional development in the knowledge-based economy: The construction of advantage. Introduction to the special issue. Journal of Technology Transfer, 31(1), 5-15.
    • Deinema, M., & Leydesdorff, L. (2006). The two faces of American power: military and political communication during the Cuban Missile Crisis. Kybernetes, 35(3/4), 547-566. https://doi.org/10.1108/03684920610653809 [details]
    • Hellsten, I., Leydesdorff, L., & Wouters, P. (2006). Multiple presents: How search engines re-write the past. New Media & Society, 8(6), 901-924. https://doi.org/10.1177/1461444806069648
    • Leydesdorff, L. (2006). Can scientific journals be classified in terms of aggregated journal-journal citation relations using the journal citation reports? Journal of the American Society for information Science and Technology, 57(5), 601-613. https://doi.org/10.1002/asi.20322
    • Leydesdorff, L. (2006). The biological metaphor of a second-order observer and the sociological discourse. Kybernetes, 35(3/4), 531-546. https://doi.org/10.1108/03684920610653791
    • Leydesdorff, L. (2006). While a storm is raging on the open sea: Regional developmenst in a knowledge-based economy. Journal of Technology Transfer, 31(1), 189-203.
    • Leydesdorff, L., & Bensman, S. (2006). Classification and powerlaws: The logarithmic transformation. Journal of the American Society for information Science and Technology, 57(11), 1470-1486. https://doi.org/10.1002/asi.20467
    • Leydesdorff, L., & Fritsch, M. (2006). Measuring the knowledge base of regional innovation systems in Germany in terms of a Triple Helix dynamics. Research Policy, 35(10), 1538-1553. https://doi.org/10.1016/j.respol.2006.09.027
    • Leydesdorff, L., & Hellsten, I. (2006). Measuring the meaning of words in contexts: An automated analysis of controversies about 'monarch butterflies', 'frankenfoods', and 'stem cells'. Scientometrics, 67(2), 231-258. https://doi.org/10.1007/s11192-006-0096-y
    • Leydesdorff, L., & Meyer, M. (2006). Triple Helix indicators of knowledge-based innovation systems: introduction to the special issue. Research Policy, 35(10), 1441-1449. https://doi.org/10.1016/j.respol.2006.09.016
    • Leydesdorff, L., & Vaughan, L. (2006). Co-occurence matrices and their applications in information science: extending ACA to the web environment. Journal of the American Society for information Science and Technology, 57(12), 1616-1628. https://doi.org/10.1002/asi.20335
    • Leydesdorff, L., Dolfsma, W., & van der Panne, G. (2006). Measuring the knowledge base of an economy in terms of triple-helix relations among 'technology, organization, and territory'. Research Policy, 35(2), 181-199. https://doi.org/10.1016/j.respol.2005.09.001
    • Leydesdorff, L., Zhou, P., So, M-H., & Park, H. W. (2006). Recognizing a change in World Science System. Yeongnam jiyeog baljeon yeon'gu, 35(2), 69-86.
    • Tobia, S., Smith, K., & Leydesdorff, L. (2006). Introduction to the special issue: Toward an ecosystem for innovation: Implications for management, policy and higher education. Industry and Higher Education, 20(4), 215-217.
    • Tobia, S., Smith, K., & Leydesdorff, L. (2006). Toward an ecosystem for innovation: Implications for management, policy and higher education. Industry and Higher Education, 20(4).
    • Zhou, P., & Leydesdorff, L. (2006). The emergence of China as a leading nation in science. Research Policy, 35(1), 83-104. https://doi.org/10.1016/j.respol.2005.08.006

    2005

    • Leydesdorff, L. (2005). Anticipatory Systems and the Processing of Meaning: A Simulation Inspired by Luhmann's Theory of Social Systems. Journal of Artificial Societies and Social Simulation, 8(2).
    • Leydesdorff, L. (2005). Similarity Measures, Author Cocitation Analysis, and Information Theory. Journal of the American Society for information Science and Technology, 56(7), 769-772. https://doi.org/10.1002/asi.20130
    • Leydesdorff, L. (2005). The Evaluation of Research and the Evolution of Science Indicators. Current Science, 89(9), 1510-1517.
    • Leydesdorff, L. (2005). The Scientific Impact of China. Scientometrics, 63(2), 411f.
    • Leydesdorff, L. (2005). The triple helix model and the study of knowledge-based innovation systems. International Journal of Contemporary Sociology, 42(1), 12-27.
    • Leydesdorff, L., & Bihui, J. (2005). Mapping the Chinese Science Citation Database in terms of aggregated journal-journal citation relations. Journal of the American Society for information Science and Technology, 56(14), 1469-1479. https://doi.org/10.1002/asi.20209
    • Leydesdorff, L., & Bihui, J. (2005). The Citation Network of Chinese Sci-tech Journals: Analysis of International and Domestic Impacts. Chinese journal of Scientific and Technical Periodicals, 16(2), 141-146.
    • Leydesdorff, L., & Hellsten, I. (2005). Metaphors and Diaphors in Science Communication: mapping the case of 'Stem-Cell Research'. Science Communication. An Interdisciplinary Social Science Journal, 27(1), 64-99. https://doi.org/10.1177/1075547005278346
    • Leydesdorff, L., & Wagner, C. S. (2005). Mapping global science using international Co-authorships: a comparison of 1990 and 2000. International Journal of Technology and Globalisation, 1(2), 185-208.
    • Leydesdorff, L., & Wagner, C. S. (2005). Network Structure, self-organization and the growth of international collaboration in science. Research Policy, 34(10), 1608-1618. https://doi.org/10.1016/j.respol.2005.08.002
    • Leydesdorff, L., & Ward, J. R. (2005). Science shops: A kaleidoscope of science-society collaborations in Europe. Public Understanding of Science, 14(4), 353-372. https://doi.org/10.1177/0963662505056612
    • Leydesdorff, L., & Zhou, P. (2005). Are the contributions of China and Korea upsetting the world system of science? Scientometrics, 63(3), 617-630. https://doi.org/10.1007/s11192-005-0231-1
    • Leydesdorff, L., & Zhou, P. (2005). Titel publicatie onbekend. Chinese journal of Scientific and Technical Periodicals, 16(3), 773-780.
    • Leydesdorff, L., Kostoff, R. N., Antionio del Rio, J., Cortes, H. D., Smith, A., Wagner, C. S., ... Tshiteya, R. (2005). The structure and infrastructure of Mexico's science and technology. Technological Forecasting & Social Change, 72(7), 798-814. https://doi.org/10.1016/j.techfore.2005.02.001
    • Leydesdorff, L., Park, H. W., Hong, H. D., & Hung, S. J. (2005). Indicators for the knowledge-based economy: a comparison between South Korea and the Netherlands. Scientometrics, 65(1), 3-27. https://doi.org/10.1007/s11192-005-0257-4

    2004

    • Fischer, C., Leydesdorff, L., & Schophaus, M. (2004). Science shops in Europe: The public as stakeholder. Science and Public Policy, 31(3), 199-211.
    • Frenken, K., & Leydesdorff, L. (2004). Scientometrics and the evaluation of European integration. In J. Ulijn, & T. Brown (Eds.), Innovation, entrepreneurship and culture: The interaction between technology, progress and economic growth. (pp. 87-102). Cheltenham, UK and Northhampton: Edward Elgar Publishing.
    • Leydesdorff, L. (2004). Clusters and maps of science journals based on bi-connected graphs in the journal citation reports. Journal of Documentation, 60(4), 371-427. https://doi.org/10.1108/00220410410548144
    • Leydesdorff, L. (2004). La triple elica delle relazioni sistemiche tra strat mercato e universita. Desk.
    • Leydesdorff, L. (2004). The evaluation of research and the scientometric research program: A methodological turn. Studies in Science of Science, 22(3), 226-232.
    • Leydesdorff, L. (2004). The university-industry knowledge relationship: Analyzing patents and the science base of technologies. Journal of the American Society for information Science and Technology, 55(11), 991-1001. https://doi.org/10.1002/asi.20045
    • Leydesdorff, L. (2004). Top-down decomposition of the journal citation report of the social science citation index: Graph- and factor-analytical approaches. Scientometrics, 60(2), 159-180. https://doi.org/10.1023/B:SCIE.0000027678.31097.e0
    • Leydesdorff, L., & Dubois, D. (2004). Anticipation in social systems. International Journal of Computing Anticipatory Systems, 15, 203-216.
    • Park, H. W., & Leydesdorff, L. (2004). Understanding the KrKwic: A computer program for the analysis of Korean text (original in Korean Language). Journal of the Korean Data Analysis Society, 6(5), 1377-1387.
    • Park, H. W., Leydesdorff, L., Hong, H. D., & Hong, S. J. (2004). Triple-helix indicators for the knowledge-based innovation system: A comparison between South Korea and The Netherlands. Journal of the Korean Data Analysis Society, 6(5), 1389-1402.
    • Wouters, P. F., Hellsten, I., & Leydesdorff, L. (2004). Internet time and the reliability of search engines. First Monday, 9(10).
    • Zhou, P., & Leydesdorff, L. (2004). China's research outcome in nantoch takes the lead in the world in 2004: The world position of China's publications (original in Chinese). Chinese S&T daily .

    2003

    • Leydesdorff, L. (2003). "Interaction" versus "action", and Luhmann's socioloy of communication. In C. B. Grant (Ed.), Rethinking Communicative Interaction: New Interdisciplinary Horizons (pp. 163-186). New York: John Benjamins. [details]
    • Leydesdorff, L. (2003). Ke Xue Ji Liang Xue De Tiao Zhan: Ke Xue Jiao Liu de Fa Zhen ce du he Zi Zu Zhi. Beijing: Scientific and Technical Documents Publishing House. [details]
    • Leydesdorff, L. (2003). A methodological perspective on the evaluation of the promotion of university-industry-government relations. Small Business Economics, 20(2), 201-204. https://doi.org/10.1023/A:1022272201042 [details]
    • Leydesdorff, L. (2003). Can networks of journal-journal citations be used as indicators of change in the social sciences? Journal of Documentation, 59(1), 84-104. https://doi.org/10.1108/00220410310458028 [details]
    • Leydesdorff, L. (2003). The construction and globalization of the knowledge base in inter-human communication systems. Canadian Journal of Communication, 28(3), 267-289. [details]
    • Leydesdorff, L. (2003). The mutual information of university-industry-government relations: An indicator of the Triple Helix dynamics. Scientometrics, 58(2), 445-467. https://doi.org/10.1023/A:1026253130577 [details]
    • Leydesdorff, L., & Etzkowitz, H. (2003). Can "The Public" be considered as a fourth helix in University-Industry-Government relations? Science and Public Policy, 30(1), 55-61. [details]
    • Leydesdorff, L., & Meyer, M. (2003). The Triple Helix of university-industry-government relations. Scientometrics, 58(2), 191-203. https://doi.org/10.1023/A:1026276308287 [details]
    • Viale, R., & Leydesdorff, L. (2003). Qualità e quantità nella scientometria. In R. Viale, & A. Cerroni (Eds.), Valutare la Scienza (pp. 21-45). Soveria Mannelli: Rubettino. [details]
    • Wagner, C. S., & Leydesdorff, L. (2003). A study of seismology as a dynamic, distributed area of scientific research. Scientometrics, 58(1), 89-112. [details]

    2002

    • Etzkowitz, H., & Leydesdorff, L. (2002). Universities and the global knowledge economy: A Triple Helix of University-Industry-Government Relations. London / NewYork: Continuum. [details]
    • Leydesdorff, L. (2002). Bizonytalanság és az “idő” kommunikációja. Információs társadalom, 2(2), 40-59. [details]
    • Leydesdorff, L. (2002). Complexity and technology. In Encyclopedia of Life Support Systems (EOLSS) Oxford, UK: Eolss Publishers. [details]
    • Leydesdorff, L. (2002). De non-lineaire dynamica's van wetenschappelijke en technologische ontwikkelingen. Tijdschrift voor Wetenschap, Technologie en Samenleving, 10(1), 16-19. [details]
    • Leydesdorff, L. (2002). De non-lineaire dynamica's van wetenschappelijke en technologische ontwikkelingen. In M. F. van den Bergh, R. A. de Klerk, & G. J. de Reuver (Eds.), Bouwen aan academisch onderwijs: Verkenningen bij gelegenheid van het afscheid van professor Karel van Dam (pp. 91-98). Amsterdam: Universiteit van Amsterdam. [details]
    • Leydesdorff, L. (2002). Dynamic and evolutionary updates of classificatory schemes in scientific journal structures. Journal of the American Society for information Science and Technology, 53(12), 987-994. https://doi.org/10.1002/asi.10144 [details]
    • Leydesdorff, L. (2002). Indicators of structural change in the dynamics of science: Entropy statistics of the SCI Journal citation reports. Scientometrics, 53(1), 131-159. https://doi.org/10.1023/A:1014892106059 [details]
    • Leydesdorff, L. (2002). May there be a 'Socionomy" beyond "Sociology"? SCIPOLICY - The Journal of Science and Health Policy, 2(1). [details]
    • Leydesdorff, L. (2002). Regime Changes and Sustainable Development. In W. Aans (Ed.), Complex Dynamics Wageningen: Studium generale. [details]
    • Leydesdorff, L. (2002). Some epistemological implications of semiosis in the social domain. Semiotics, Evolution, Energy, and Development (SEED) Journal, 2(3), 60-83. [details]
    • Leydesdorff, L. (2002). Technology transfer in European regions: Introduction to the Special Issue. Journal of Technology Transfer, 27(1), 5-13. [details]
    • Leydesdorff, L. (2002). The Communication Turn in the Theory of Social Systems. Systems Research and Behavioral Science, 19(2), 129-136. https://doi.org/10.1002/sres.453 [details]
    • Leydesdorff, L. (2002). The complex dynamics of technological innovation: A comparison of models using cellular automata. Systems Research and Behavioral Science, 19(2), 563-575. https://doi.org/10.1002/sres.482 [details]
    • Leydesdorff, L., Cooke, P., & Olazaran, M. (2002). Special issue: Regional Innovation Systems in Europe. Journal of Thechnology Transfer. (27; No. 1). onbekend: onbekend.

    2001

    • Leydesdorff, L. (2001). El nuevo régimen de comunicacion en las relaciones Universidad-Empresa-Gobierno: Una triple hélice de innovaciones. Ekonomiaz, 45(3), 60-77. [details]
    • Leydesdorff, L. (2001). Indicators of innovation in a knowledge-based economy. Cybermetrics, 5(1). [details]
    • Leydesdorff, L. (2001). Scientometrics and science studies. Bulletin de Méthodologie Sociologique, 71, 79-91. [details]
    • Leydesdorff, L. (2001). Technology and culture: The dissemination and the potential 'lock-in' of new technologies. Journal of Artificial Societies and Social Simulation, 4(3). [details]
    • Leydesdorff, L. (2001). Why Catalonia cannot be considered as a Regional Innovation System. Scientometrics, 50(2), 215-240. [details]
    • Leydesdorff, L., & Etzkowitz, H. (2001). The transformation of university-industry-government relations. Electronic Journal of Sociology, 5(4). [details]
    • Leydesdorff, L., & Guoping, Z. (2001). University-Industry-Government Relations in China: An emergent national system of innovations. Industry and Higher Education, 15(3), 179-182. [details]
    • Leydesdorff, L., & Heimeriks, G. J. (2001). The self-organization of the European information society: The case of "biotechnology". Journal of the American Society for information Science and Technology, 42(14), 1262-1274. [details]

    2000

    1998

    • Etzkowitz, H., & Leydesdorff, L. (1998). A Triple Helix of University-Industry-Government Relations. Industry and Higher Education, 12, 197-201.
    • Etzkowitz, H., & Leydesdorff, L. (1998). The Endless Transition: A "Triple Helix" of University-Industry-Government Relations. Minerva, 36, 203-208.
    • Leydesdorff, L. (1998). Theories of Citation? Scientometrics, 43(1), 5-25. https://doi.org/10.1007/BF02458391
    • Leydesdorff, L., & Etzkowitz, H. (1998). Technology Innovation in a Triple Helix of University-Industry-Government Relations. Asia Pacific Tech Monitor, 15(1), 32-38.
    • Leydesdorff, L., & Etzkowitz, H. (1998). The Triple Helix as a model for innovation studies. Science and Public Policy, 25(3), 195-203.
    • Leydesdorff, L., & Etzkowitz, H. (1998). Triple Helix of innovation: Introduction. Science and Public Policy, 25(6), 358-364.
    • Leydesdorff, L., & de Klerk, R. (1998). An innovative introductory course at the University of Amsterdam. International Journal of Science Education, 20(1), 15-23. https://doi.org/10.1080/0950069980200102

    1997

    • Leydesdorff, L. (1997). Sustainable Technological Developments and Second-Order Cybernetics. Technology Analysis & Strategic Management, 9(3), 329-341. [details]
    • Leydesdorff, L. (1997). The 'Post-Institutional' Perspective: Society as an emerging system with dynamically changing boundaries. Soziale Systeme, 3, 361-378. [details]
    • Leydesdorff, L. (1997). The Non-linear Dynamics of Sociological Reflections. International Sociology, 12(1), 25-45. https://doi.org/10.1177/026858097012001002 [details]
    • Leydesdorff, L. (1997). Why Words and Co-Words Cannot Map the Development of the Sciences. Journal of the American Society for Information Science, 48, 418-427. [details]
    • Leydesdorff, L., & van den Besselaar, P. (1997). Scientometrics and Communication Theory: Towards Theoretically Informed Indicators. Scientometrics, 38(1), 155-174. https://doi.org/10.1007/BF02461129 [details]

    1996

    • Etzkowitz, H., & Leydesdorff, L. (1996). A Triple Helix of Academic-Industry-Government Relations: Development models beyond 'Capitalism versus Socialism'. Current Science, 70(8), 690-693. [details]
    • Leydesdorff, L. (1996). Dis-Equilibria Within and Among the Sciences. Knowledge and Policy, 9, 74-77. [details]
    • Leydesdorff, L. (1996). Luhmann's Sociological Theory: Its Operationalization and Future Perspectives. Information sur les Sciences Sociales, 35, 283-306. https://doi.org/10.1177/053901896035002007 [details]
    • Leydesdorff, L. (1996). Scientometrics and Science Studies: From Words and Co-words to Information and Entropy. Journal of the International Societyfor Scientometrics and informetrics, 2, 33-39. [details]
    • Leydesdorff, L. (1996). The Possibility of a Mathematical Sociology of Scientific Communication. Journal for General Philosophy of Science, 27(2), 243-265. https://doi.org/10.1007/BF02262616 [details]
    • Leydesdorff, L., & Etzkowitz, H. (1996). Emergence of a Triple Helix of University-Industry-Government Relations. Science and Public Policy, 23, 279-286. [details]
    • Leydesdorff, L., & Gauthier, É. (1996). The Evaluation of National Performance in Selected Priority Areas using Scientometric Methods. Research Policy, 25(3), 431-450. https://doi.org/10.1016/0048-7333(95)00841-1 [details]

    1995

    2017

    2016

    • Leydesdorff, L., Wagner, C., & Bornmann, L. (2016). Replicability and the public/private divide. Journal of the Association for Information Science and Technology, 67(7), 1777-1778. https://doi.org/10.1002/asi.23672 [details]

    2015

    • Bornmann, L., & Leydesdorff, L. (2015). Response to Stephen Holgate. EMBO Reports, 16(3), 262. https://doi.org/10.15252/embr.201440009 [details]
    • Leydesdorff, L. (2015). Una teoría sociológica de la comunicacion: la autoorganizacion de la sociedad basada en el conocimiento. (Teoría social). México, D.F. : Universidad Iberoamerica. [details]
    • Leydesdorff, L., & Milojević, S. (2015). The citation impact of German sociology journals and the validity of scientometric evaluations. In 4S 2015, Denver : Denver, Colorado, 11-14 November. Program with Abstracts (pp. [156]). Society for Social Studies of Science. [details]
    • Leydesdorff, L., Perevodchikov, E., & Uvarov, A. (2015). Измерение синергии Тройной спирали в российских инновационных системах на региональном, окружном и национальном уровнях. Amsterdam: ASCoR [etc]. [details]

    2014

    • Leydesdorff, L. (2014). Can inter-human communications be modeled as "autopoietic"? Constructivist Foundations, 9(2), 168-170. [details]
    • Leydesdorff, L. (2014). De choreometrie van universiteit-industrie-overheidsrelaties: een dans rond de mousse-aux-trois-chocolats. In H. de Regt, & C. Kwa (Eds.), Building bridges: connecting science, technology and philosophy: essays presented to Hans Radder (pp. 85-88). Amsterdam: VU University Press. [details]
    • Leydesdorff, L., Alkemade, F., & Heimeriks, G. (2014). Patents as instruments for exploring innovation dynamics: Different perspectives on "photovoltaic cells". In E. Noyons (Ed.), "Context Counts: Pathways to Master Big and Little Data": proceedings of the science and technology indicators conference 2014 Leiden: 3-5 September 2014 in Leiden, the Netherlands (pp. 364-373). Leiden: Universiteit Leiden - CWTS 2014. [details]
    • Leydesdorff, L., de Moya-Anegón, F., & de Nooy, W. (2014). Scopus and Web-of-Science 2012 compared in terms of aggregated journal-journal citation relations: Global maps and interactive overlays. In E. Noyons (Ed.), "Context Counts: Pathways to Master Big and Little Data": proceedings of the science and technology indicators conference 2014 Leiden: 3-5 September 2014 in Leiden, the Netherlands (pp. 374-379). Leiden: Universiteit Leiden - CWTS 2014. [details]
    • van den Besselaar, P., Bornmann, L., & Leydesdorff, L. (2014). Correction. Journal of Informetrics, 8(4), 801. https://doi.org/10.1016/j.joi.2014.07.008

    2013

    • Bornmann, L., & Leydesdorff, L. (2013). The validation of (advanced) bibliometric indicators through peer assessments: A comparative study using data from InCites and F1000. Journal of Informetrics, 7(2), 286-291. https://doi.org/10.1016/j.joi.2012.12.003 [details]
    • Leydesdorff, L. (2013). N-Tuple of helices. In E. G. Carayannis (Ed.), Encyclopedia of creativity, invention, innovation and entrepreneurship (pp. 1400-1402). New York: Springer. https://doi.org/10.1007/978-1-4614-3858-8_200002 [details]
    • Leydesdorff, L. (2013). Niklas Luhmann’s Magnificent Contribution to the Sociological Tradition: The Emergence of the Knowledge-Based Economy as an Order of Expectations. In M. Tzaneva (Ed.), Nachtflug der Eule: 150 Stimmen zum Werk von Niklas Luhmann: Gedenkbuch zum 15. Todestag von Niklas Luhmann (8. Dezember 1927 Lüneburg - 6. November 1998 Oerlinghausen): Mitternacht (pp. 471-486). (Hommage; No. 14). Berlin: LiDi EuropEdition. [details]
    • Leydesdorff, L., Radicchi, F., Bornmann, L., Castellano, C., & de Nooy, W. (2013). Field-normalization of impact factors: rescaling versus fractionally counted. In J. Gorraiz, E. Schiebel, C. Gumpenberger, M. Hörlesberger, & H. Moed (Eds.), Proceedings of ISSI 2013 Vienna: 14th International Society of Scientometrics and Informetrics Conference: Vienna, Austria, 15th to 20th July 2013. - Vol. 1 (pp. 769-783). Vienna: Austrian Institute of Technology. [details]
    • Leydesdorff, L., Radicchi, F., Bornmann, L., Castellano, C., & de Nooy, W. (2013). Field-normalized impact factors (IFs): A comparison of rescaling and fractionally counted IFs. Journal of the American Society for information Science and Technology, 64(11), 2299-2309. https://doi.org/10.1002/asi.22911 [details]

    2012

    • Leydesdorff, L. (2012). Accounting for the uncertainty in the evaluation of percentile ranks. Journal of the American Society for information Science and Technology, 63(11), 2349-2350. https://doi.org/10.1002/asi.22714 [details]
    • Leydesdorff, L. (Author). (2012). Датэрміновае сістэмы і апрацоўкі сэнсу. Web publication/site, Newport Beach, CA: Science | Web Hosting Geeks. Retrieved from http://webhostinggeeks.com/science/anticipatory-systems-be [details]
    • Leydesdorff, L., & Bornmann, L. (2012). Percentile ranks and the integrated impact indicator (I3). Journal of the American Society for information Science and Technology, 63(9), 1901-1902. https://doi.org/10.1002/asi.22641 [details]
    • Leydesdorff, L., & Bornmann, L. (2012). The integrated impact indicator (I3), the top-10% excellence indicator, and the use of non-parametric statistics. Research Trends, 29, 5-8. [details]
    • Leydesdorff, L., & Felt, U. (2012). "Books" and "book chapters" in the Book Citation Index (BCI) and Science Citation Index (SCI, SoSCI, A&HCI). In A. Grove (Ed.), Information, interaction, innovation: celebrating the past, constructing the present and creating the future; 75th annual meeting ASIS&T 2012; October 26-30, Baltimore, Md. Proceedings (Vol. 49). Silver Spring, Md.: ASIS&T. [details]
    • Leydesdorff, L., & Strand, Ø. (2012). Triple-helix relations and potential synergies among technologies, industries, and regions in Norway. Procedia - Social and Behavioral Sciences, 52, 1-4. https://doi.org/10.1016/j.sbspro.2012.09.435 [details]
    • Leydesdorff, L., Rotolo, D., & Rafols, I. (2012). Innovation as a nonlinear process and the bibliometric perspective. In ISI (Ed.), Towards Transformative Governance? Responses to mission-oriented innovation policy pradigms Fraunhofer Institute for Systems and Innovation Research. http://eu-spri-conference-2012.org/conf-org-wAssets/docs/Book-of-Abstracts.pdf
    • Leydesdorff, L., Rotolo, D., & de Nooy, W. (2012). Innovation as a Nonlinear Process and the Scientometric Perspective. In E. Archambault, Y. Gingras, & V. Larivière (Eds.), Proceedings of the 17th International Conference on Science and Technology Indicators (pp. 530-540). Montréal: Science-Metrix and Ost. [details]

    2011

    • Leydesdorff, L. (2011). Bibliometrics/Citation networks. In G. A. Barnett (Ed.), Encyclopedia of social networks, vol. 1 (pp. 72-74). (Sage reference). Los Angeles: Sage. [details]
    • Leydesdorff, L. (2011). Comment by Loet Leydesdorff: When can the cross-over between China and the USA be expected using Scopus data? Research Trends, 25, 8. [details]
    • Leydesdorff, L. (2011). Manfred Bonitz and the Matthew effect: quantitative content analysis of citation contexts. ISSI Newsletter, 25-S, 49-56. [details]
    • Leydesdorff, L. (Author). (2011). Este societatea un sistem de auto-organizare?. Web publication/site, Newport Beach, CA: Science | Web Hosting Geeks. Retrieved from http://science.webhostinggeeks.com/index-leydesdorff-rm [details]
    • Leydesdorff, L., & Bornmann, L. (2011). Fractionally counted versus integer-counted impact factors in the ISI journal set 2008. In E. Noyons, P. Ngulube, & J. Leta (Eds.), Proceedings of the ISSI 2011 Conference: 13th International Conference of the International Society for Scientometrics & Informetrics: Durban, South Africa (pp. 442-453). Leuven: ISSI. [details]
    • Leydesdorff, L., & Opthof, T. (2011). Scopus' SNIP indicator: reply to Moed. Journal of the American Society for information Science and Technology, 62(1), 214-215. https://doi.org/10.1002/asi.21405 [details]
    • Rafols, I., Leydesdorff, L., O'Hare, A., Nightingale, P., & Stirling, A. (2011). How journal rankings can suppress interdisciplinarity: the case of innovation studies and business and management. In E. Noyons, P. Ngulube, & J. Leta (Eds.), Proceedings of the ISSI 2011 Conference: 13th International Conference of the International Society for Scientometrics & Informetrics: Durban, South Africa (pp. 712-723). Leuven: ISSI. [details]

    2010

    • Leydesdorff, L., & Rafols, I. (2010). How emerging technologies conquer the world: diffusion, differentiation, and transformation into research technologies. In Annual Meeting of the Society for the Social Studies of Science, University of Tokyo Tokyo.

    2009

    • Dolfsma, W., & Leydesdorff, L. (2009). Economie en bedrijfskunde evalueren. Economisch-Statistische Berichten, 94(4559), 280-282. [details]
    • Leydesdorff, L. (2009). How are new citation-based journal indicators adding to the bibliometric toolbox? In B. Larsen, & J. Leta (Eds.), Proceedings of ISSI 2009: 12th International Conference on Scientometrics and Informetrics ISSI, Rio de Janeiro, 15 July 2009 (pp. 108-119) [details]
    • Leydesdorff, L. (2009). The Evolution and Codification of Knowledge Networks in terms of Relations, Positions, and Functions. In 9th International Conference of Sociocybernetics ‘Modernity 2.0’: Emerging Social Media Technologies and Their Impacts, Urbino, 30 June 2009
    • Leydesdorff, L. (2009). The Measurement of Anticipation in Networked Systems. In 9th International Conference on Computing Anticipatory Systems CASYS’09, Liège, Belgium, 6 August 2009
    • Leydesdorff, L., & Dolfsma, W. (2009). Van onderzoeksinput naar -output. Economisch-Statistische Berichten, 94(4564), 426-427. [details]
    • Leydesdorff, L., & Scharnhorst, A. (2009). The Configuration and Structuration of Knowledge Networks: Differentiation and Integration of Relations, Positions, and Functions. In Workshop on "Structure and Dynamics of Knowledge Networks", Eindhoven University of Technology, Eindhoven, 12th-14th May 2009
    • Leydesdorff, L., & de Nooy, W. (2009). How can configurations be studied in two-mode networks? Higher-order structure in social networks. In Conference on 2-Mode Social Network Analysis, Free University, Amsterdam, 2 October 2009
    • Leydesdorff, L., Porter, A., & Rafols, I. (2009). Using global maps of science in policy and management. In Atlanta Science Policy Conference. Atlanta, 2-3 October 2009
    • Rafols, I., & Leydesdorff, L. (2009). Content-based and algorithmic classifications of journals: perspectives on the dynamics of scientific communication and indexer effects. In B. Larsen, & J. Leta (Eds.), Proceedings of ISSI 2009: 12th International Conference on Scientometrics and Informetrics ISS, Rio de Janeiro, 16 July 2009 (pp. 460-471) [details]

    2008

    • Leydesdorff, L. (2008). The communication of meaning in anticipatory systems: a simulation study of the dynamics of intentionality in social interactions. In D. M. Dubois (Ed.), Computing Anticipatory Systems: CASYS '07 - eighth international conference, Liège, Belgium, 6-11 August 2007 (pp. 33-49). (AIP conference proceedings; Vol. 1051). Melville, NY : American Institute of Physics. https://doi.org/10.1063/1.3020674 [details]

    2007

    • Leydesdorff, L. (2007). "Während auf hoher See ein Sturm tobt...": Innovationssysteme, regionale Entwicklung und wissensbasierte Ökonomie aus der Perspektive des Triple-Helix-Modells. In H. Pahl, & L. Meier (Eds.), Kognitiver Kapitalismus (pp. 163-193). Marburg: Metropolis Verlag. [details]
    • Leydesdorff, L. (2007). A kommunikáció szociológiai elmélete: Társadalmi kommunikáció sorozat (translated by Jakab András). Budapest: Typotext. [details]
    • Leydesdorff, L. (2007). Include citations when ranking institutions and scholars. Communications of the ACM, 50(9), 14. https://doi.org/10.1145/1284621.1284633 [details]
    • Leydesdorff, L. (2007). Indicators of structural change in the dynamics of science: Entropy statistics of the SCI Journal Citation Reports. In T. Braun (Ed.), The impact factors of scientific and scholarly journals. Its use and misuse (pp. 97-126). Budapest, Hungary: Akadémiai Kiadó. [details]
    • Leydesdorff, L. (2007). Luhmann's communication-theoretical specification of the 'Genomena' of Husserl's phenomenology. In E. Balsemão Pires (Ed.), Public space, power and communication (pp. 233-243). Coimbra: Edições Afrontamento. [details]
    • Leydesdorff, L. (2007). Should co-occurrence data be normalized? A rejoinder to: Waltman, L., & van Eck, N. J. (2007). Some comments on the question whether co-occurrence data should be normalized. Journal of the American Society for information Science and Technology, 58(14). [details]
    • Leydesdorff, L. (2007). Top-down decomposition of the journal citation report of the social science citation index: Graph- and factor-analytical approaches. In T. Braun (Ed.), The impact factors of scientific and scholarly journals. Its use and misuse (pp. 127-148). Budapest, Hungary: Akadémiai Kiadó. [details]

    2006

    • Goldstone, R. L., & Leydesdorff, L. (2006). The Import and Export of Cognitive Science. Cognitive Science, 30(6), 983-993. https://doi.org/10.1207/s15516709cog0000_96 [details]
    • Leydesdorff, L. (2006). The knowledge-based economy: Modeled, measured, simulated. Boca Rota: Universal Publishers.
    • Leydesdorff, L. (2006). The knowledge-based economy and the triple helix model. In W. Dolfsma, & L. Soete (Eds.), Understanding the dynamics of a knowledge economy. (pp. 42-76). Cheltenham: Edward Elgar.

    2003

    • Leydesdorff, L. (2003). Empirical evidence of self-organization? A rejoinder. Journal of the American Society for information Science and Technology, 54(8 + 11). [details]
    • Leydesdorff, L., & Scharnhorst, A. (2003). Measuring the Knowledge Base: A Program of Innovation Studies. Berlin: Berlin-Brandenburgische Akademie der Wissenschaften. [details]
    • Leydesdorff, L., & Ward, J. R. (2003). Communication of Science Shop Mediation: A Kaleidoscope of University-Society Relations, Improving Interaction between NGOs, Universities, and Science Shops: Experiences and Expectations (INTERACTS). onbekend: onbekend.
    • Leydesdorff, L., & van den Besselaar, P. A. A. (2003). La scientometria e la teoria della communicazione: verso indicatori basati su informazioni teoriche. In R. Viale, & A. Cerroni (Eds.), Valutare la Scienza (pp. 309-330). Soveria Mannelli: Rubbetino. [details]

    2002

    • Leydesdorff, L. (2002). Systems and the Information Society Network (SISN). onbekend: onbekend.
    • Leydesdorff, L. (2002). The globalization of an author: A webpage at the occasion of the 70th birthday of Tibor Braun, the editor of Scientometrics. Scientometrics.

    2001

    • Leydesdorff, L. (2001). A sociological theory of communication: the self-organization of the knowledge-based society . Parkland, FL: Universal Publishers. [details]
    • Leydesdorff, L. (2001). Evaluation report on the project "Living knowledge: Building partners for access to research" (SciPas). [details]
    • Leydesdorff, L. (2001). Saientometorikus no chosen: kagaku-gijyutsu-joho no jiko-soshiki-ka. Tokyo: Tamagawa University Press. [details]
    • Leydesdorff, L. (2001). The challenge of scientometrics: The development, measurement, and self-organization of scientific communications. (2nd ed.) Parkland, FL: Universal Publishers. [details]
    • Leydesdorff, L. (2001). Universities and the global knowledge economy: A triple helix of university-industry-government relations. (2nd ed.) Londen/New York: Continuum. [details]
    • Leydesdorff, L. (2001). A triple-helix of university-industry-government-relations: Mode 2 and the globalization of national systems of innovation. In Science under pressure: Proceedings (pp. 7-33). Aarhus: Danish Institute for Studies in Research and Research Policy. [details]
    • Leydesdorff, L. (2001). Duaal leren: Kennisontwikkeling aan organisatorische interfaces. In G. van Dijk, & H. Visser (Eds.), Studeren en werken: Bouwstenen voor academisch duaal onderwijs (pp. 26-31). Amsterdam: Universiteit van Amsterdam. [details]
    • Leydesdorff, L. (2001). Innovation inspired: The triple helix of university-industry-government relations. Technology Access Report, 14(10), 4-6. [details]
    • Leydesdorff, L. (2001). Science & Public Policy. [Review of: H. Nowotny, P. Scott (2001) Re-thinking the relations between texts and contexts in science]. Re-thinking Science: Knowledge and the public in an age of uncertainty., 28(6), 484-486. [details]
    • Leydesdorff, L. (2001). Scientometrics. In N. J. Smelser, & P. B. Baltes (Eds.), International encyclopedia of the social and behavioral sciences (pp. 13752-13755). Oxford: Elsevier. [details]
    • Leydesdorff, L. (2001). The complex dynamics of scientific communication. In C. B. Grant, & D. McLaughlin (Eds.), Language-meaning-social construction: Interdisciplinary studies Amsterdam/Atlanta, GA: Rodopi. [details]
    • Leydesdorff, L. (2001). The international science shop network. EASST Review, 20(1), 11-12. [details]

    2000

    • Leydesdorff, L. (2000). Codification and self-organization in the European STI system. Brussels: TSER, European Commission. [details]
    • Leydesdorff, L. (2000). A triple Helix of University-industry-government relations. Scipolicy, 1(1), 43-48. [details]
    • Leydesdorff, L. (2000). Are EU networks anticipatory systems? An empirical and analytical approach. In D. M. Dubois (Ed.), Computing Anticipatory Systems - CASYS'99 (pp. 171-181). Woodbury, NY: American Physics Institute. [details]
    • Leydesdorff, L. (2000). De ontwikkeling van haarscheurtjes in wetenschapsontwikkeling: De wetenschapsdynamica van de wetenschapsdynamica. Tijdschrift voor Wetenschap, Technologie en Samenleving, 8(4), 127-131. [details]
    • Leydesdorff, L. (2000). Post-Institutionalism: A regime of fragmentation and translation. Systemica, 12, 229-241. [details]
    • Leydesdorff, L. (2000). Technological development and factor substitution in a non-linear model. Journal of Social and Evolutionary Systems, 21(2), 173-192. [details]
    • Leydesdorff, L. (2000). [Review of: P. Ensor (2000) The Cybrarian's Manual 2]. Journal of Documentation, 57(6), 824-826. [details]
    • Leydesdorff, L., & Curran, M. E. (2000). Mapping university-industry-government relations on the Internet: The construction of indicators for a knowledge-based economy. Cybermetrics, 4(1). [details]
    • Leydesdorff, L., & Etzkowitz, H. (2000). Le Mode 2 et la globalisation des systemes d'innovation nationaux: le modele a triple helice des relations entre universite industrie et gouvernement. Sociologie et Societes, 32(1), 135-156. [details]

    1999

    • Heimeriks, G. J., van den Besselaar, P. A. A., Leydesdorff, L., Oostveen, A., Riba, M., & Ruhl, D. (1999). Codification and self-organization of the European STI system. The Self-organization of the European Information Society. [details]
    • van den Besselaar, P. A. A., & Leydesdorff, L. (1999). A triple helix of University-Industry-Goverment relations. (project PL97-1296 - SOEIS.). TSER. [details]

    1998

    • Etzkowitz, H., & Leydesdorff, L. (Eds.) (1998). Special issue: A "Triple Helix" of University-Industry-Government Relations. Minerva, 36(3), 203-288.
    • Leydesdorff, L. (1998). Reply About Using Co-Words. Journal of the American Society for Information Science, 49, 98-99.
    • Leydesdorff, L., & Etzkowitz, H. (1998). A Triple Helix of University-Industry-Government Relations: The Future Location of Research. New York: SPI, State University of New York at Purchase.
    • Leydesdorff, L., & Van den Besselaar, P. (1998). Competing Technologies: Disturbance, Selection, and the Possibilities of Lock-In. In G. E. Lasker (Ed.), Advances in Support Systems Research. - Volume III: Decision Support Systems and Intelligent Information Systems (pp. 54-58). (IIAS; Vol. 58). Windsor, ONT: International Institute for Advanced Studies in Systems Research and Cybernetics. [details]
    • Leydesdorff, L., & Van den Besselaar, P. (1998). Competing technologies: Lock-ins and Lock-outs. In D. M. Dubois (Ed.), Computing Anticipatory Systems: CASYS, first international conference, Liège, Belgium, August 1997 (pp. 309-323). (AIP conference proceedings; Vol. 437). Woodbury, NY: American Institute of Physics. [details]
    • Leydesdorff, L., & van den Besselaar, P. A. A. (1998). Technological developments and factor substitution in a complex and dynamic system. Journal of Social and Evolutionary Systems, 21(2), 173-193. [details]

    1997

    • Etzkowitz, H., & Leydesdorff, L. (1997). Introduction: Universities in the Global Knowledge Economy. In H. Etzkowitz, & L. Leydesdorff (Eds.), Universities and the Global Knowledge Economy: A Triple Helix of University-Industry-Government Relations (pp. 1-8). London: Pinter. [details]
    • Frenken, K., Leydesdorff, L., & Saviotti, P. P. (1997). Self-Organsiation and the Economics of Technical Change. An Empirical Approach. In A. Orlean, & R. Torpol (Eds.), Evolution et Aut-Organisation en Economie Paris: Carre des Sciences. [details]
    • Leydesdorff, L. (1997). A Triple Helix of University-Industry-Government Relations. In H. Etzkowitz, & L. Leydesdorff (Eds.), Universities and the Global Knowledge Economy: A Triple Helix of University-Industry-Government Relations (pp. 155-162) [details]
    • Leydesdorff, L. (1997). The New Communication Regime of University-Industry-Government Relations. In L. Leydesdorff, & H. Etzkowitz (Eds.), Universities and the Global Knowledge Economy: A Triple Helix of University-Industry-Government Relations (pp. 106-117) [details]
    • Leydesdorff, L., & Etzkowitz, H. (Eds.) (1997). Special Issue on Science Policy Dimensions of the Triple Helix of University-Industry-Government Relations. Science and Public Policy, 24(1), 2-52. [details]
    • Leydesdorff, L., & Wouters, P. (1997). Introduction. Theoretical framework. In L. Leydesdorff, & H. Etzkowitz (Eds.), Universities and the Global Knowledge Economy: A Triple Helix of University-Industry-Government Relations (pp. 3-5) [details]
    • Leydesdorff, L., & van den Besselaar, P. (1997). Competing technologies: disturbance, selection and the possibility of lock-ins. In D. Dubois (Ed.), Proceedings of the First Conference on Computing Anticipative Systems: Casys 97: (Vol. 2, pp. 60-64). Liège: Chaos. [details]
    • Wouters, P., & Leydesdorff, L. (Eds.) (1997). Quantitative Approaches to Science and Technology Studies. Scientometrics, 38(1), 3-218. [details]

    1996

    • Frenken, K., & Leydesdorff, L. (1996). The Co-Evolution of Technical and Market Developments Modeled in Terms of Information Theory. The Case of Civil Aircraft (1923-1999). In Work, Unemployment and Need: `Theory, Evidence, Policies' Antwerp: European Association for Evolutionary Political Economy. [details]
    • Leydesdorff, L. (1996). Is a General Theory of Communications Emerging? In G. L. Farre, A. C. Ehresmann, & J. P. Vanbremeersch (Eds.), Emergence - Complexit Hirarchique - Organisation: Modles de la boucle volutive. Actes du Symposium ECHO (pp. 121-126). Amiens: Universite de Picardie Jules Verne. [details]
    • Leydesdorff, L. (1996). The Trans-Episteme of University-Industry-Government Relations. In O. Kaynak, & R. Kaykayoglu (Eds.), Proceedings of the International Conference of Technology Management: University/Industry/Government Collaboration (pp. 194-199). Istanbul: Bogazici University. [details]
    • Leydesdorff, L., & Etzkowitz, H. (1996). A Triple Helix of University-Industry-Government Relations. In O. Kaynak, & R. Kaykayoglu (Eds.), Proceedings of the International Conference of Technology Management: University/Industry/Government Collaboration (pp. 200-205). Istanbul: Bogazici University. [details]
    • Leydesdorff, L., & Etzkowitz, H. (1996). The Future Location of Research: A Triple Helix of University-Industry-Government. EASST Review, 15(4), 20-25. [details]
    • Leydesdorff, L., & Wouters, P. F. (1996). Quantitative Measuring and Qualitative Understanding: Is it possible to bridge the divide in STS? EASST Review, 15(3), 20-24. [details]
    • Leydesdorff, L., & van den Besselaar, P. A. A. (1996). Scientometrics and communication theory, toward theoretically informed indicators. (Presented at the Scientometrics Workshop, Amsterdam, May 1996). (96; No. 1). Amsterdam: Programmagroep Sociaal Wetenschappelijke. [details]
    • van den Besselaar, P. A. A., & Leydesdorff, L. (1996). The dynamics of sience studies, a reconstruction (paper 4S/EAST). (96; No. 2). Amsterdam: Programmagroep Sociaal Wetenschappelijke. [details]
    • van den Besselaar, P., & Leydesdorff, L. (1996). Mapping change in scientific specialties: a scientometric case study of the development or artificial intelligence. Journal of the American Society for Information Science, 47(6), 415-436. https://doi.org/10.1002/(SICI)1097-4571(199606)47:6<415::AID-ASI3>3.0.CO;2-Y [details]

    1995

    • Etzkowitz, H., & Leydesdorff, L. (1995). Universities and the Global Knowledge Economy: A Triple Helix of University-Industry-Government Relations. Amsterdam: University of Amsterdam. [details]
    • Leydesdorff, L. (1995). The Challenge of Scientometrics: The Development, Measurement and Selforganization of Scientific communications. Leiden: DSWO Press. [details]

    1994

    • Leydesdorff, L. (1994). Een Scientometrische Verkenning van de Biotechnologie. Amsterdam: Universiteit van Amsterdam. [details]
    • Leydesdorff, L. (1994). Book Review of La Scientometrie [Review of: J.P. Courtial (1994) La Scientometrie]. In J. P. Courtial, M. Callon, & H. Penan (Eds.), Unknown Paris: Presses Universitaires de France.
    • Leydesdorff, L., & Van den Besselaar, P. (1994). Evolutionary economics and chaos theory: New directions in technology studies. London: Pinter Publishers. [details]
    • Leydesdorff, L., Cozzens, S., & van den Besselaar, P. (1994). Tracking areas of strategic importance by using scientometric journal mappings. Research Policy, 23(2), 217-229. https://doi.org/10.1016/0048-7333(94)90054-X [details]

    1993

    • van den Besselaar, P. A. A., & Leydesdorff, L. (1993). Artificial Intelligence as a research tradition. In M. C. Angelides, & J. Siever (Eds.), Proceedings of the AI-stream of the 35th Annual Conference of the Operational Research Society. York, 14-16 sept. 1993. (pp. 57-87). Birmingham: ORS. [details]
    • van den Besselaar, P. A. A., & Leydesdorff, L. (1993). Factorsubstitutie en technologische ontwikkeling in een evolutionair model. International Scientific Journal of methods and Models of Complexity, 2(1), 5-17. [details]
    • van den Besselaar, P. A. A., & Leydesdorff, L. (1993). Research performance in AI and Robotics, an international comparison. AI Communications, 6, 83-91. [details]

    1992

    • van den Besselaar, P. A. A., & Leydesdorff, L. (1992). De Nederlandse bijdrage aan de ontwikkeling van Artificiële Intelligentie. I&I Informatie- en Informatiebeleid, 10(3), 54-61. [details]

    1987

    2012

    • Leydesdorff, L. (2012). Comparación y predicción de las cuotas mundiales de publicación de los EUA, EU-27 y China usando la nueva interfaz Web of science versus Scopus. El Profesional de la Información, 21(1), 43-50. https://doi.org/10.3145/epi.2012.ene.06 [details]
    • Leydesdorff, L., & Milojević, S. (2012). Elm-sanji. Khabarnameye Elm-sanji, 6, 3-13. [details]

    2011

    • Leydesdorff, L. (2011). De ontwikkeling van kennis in wetenschappelijke communicatie: onzekerheid en codificatie in anticipatorische systemen. (Oratiereeks). Amsterdam: Universiteit van Amsterdam. [details]
    • Leydesdorff, L. (2011). [Review of: K. Börner (2010) Atlas of science: visualizing what we know]. Scientometrics, 88(2), 675-677. https://doi.org/10.1007/s11192-011-0409-7 [details]
    • Leydesdorff, L. (2011). [Review of: M. Gross (2010) Ignorance and surprise: science, society, and ecological design]. American Journal of Sociology, 116(6), 2022-2024. https://doi.org/10.1086/660075 [details]

    2010

    • Leydesdorff, L., & Opthof, T. (2010). 'Ook SNIP-citatieindex moet herberekend'. Onderzoek Nederland, 255, 5. [details]
    • Leydesdorff, L., & Opthof, T. (2010). Opnieuw debat over de Leidse rankings. Onderzoek Nederland, 252, 2. [details]
    • Opthof, T., & Leydesdorff, L. (2010). Rekenfout CWTS vertekent citatiescore. Onderzoek Nederland, 251, 1-2. [details]

    2008

    • Leydesdorff, L. (2008). 5 questions. Library Connect, 6(4), 8-9. [details]
    • Leydesdorff, L. (2008). Journals as retention mechanisms of scientific growth. Research Trends, (7), 6-7. [details]
    • Leydesdorff, L. (2008). The communication of meaning and knowledge in a knowledge-based economy. SemiotiX, (13). [details]
    • Leydesdorff, L., Goldstone, R. L., & Schank, T. (2008). Betweenness centrality and the interdisciplinarity of cognitive science. Cognitive Science. [details]
    • Zhou, P., & Leydesdorff, L. (2008). China ranks second in scientific publications since 2006. ISSI Newsletter, 4(1), 7-9. [details]

    2007

    • Leydesdorff, L. (2007). The position of Tibor Braun's OEvre: Bibliographic Journal Coupling. In W. Glänzel, A. Schubert, & B. Schlemmer (Eds.), The Multidimensional World of Tibor Braun: at the occasion of his 75th birthday Leuven: Steunpunt O&O. [details]
    • van den Besselaar, P. A. A., & Leydesdorff, L. (2007). Past performance as predictor of successful grant applications: A case study. Report to the board of the Netherlands Social Science Research council (MaGW/NWO). Den Haag: Rathenau Institute. [details]

    2005

    • Dolfsma, W., Leydesdorff, L., & van der Panne, G. (2005). De kenniseconomie de maat genomen. Economisch-Statistische Berichten, 90(4469), 366-368.
    • Leydesdorff, L. (2005). Journal Maps and Local Impact Factors. Chronicle of Higher Education, 52(13), A55.
    • Leydesdorff, L. (2005). Mathematical, Biological, and Computational Explanations [Review of: Evelyn Fox Keller (2002) Making sense of life: Explaining Biological Development Models, Metaphors, and Machines]. Heredity, 94(4), 458.

    2004

    • Kostoff, R. N., Antionio del Rio, J., Cortes, H. D., Smith, C., Smith, A., Wagner, C. S., ... Tshiteya, R. (2004). Science and technology text mining: Mexico core competencies. Technical Report of the Defense Technical Information Center of the U.S. Office of Naval Research. Amsterdam: ASCoR.
    • Leydesdorff, L. (2004). Mathematical, biological, and computational explanations [Review of: E. Fox Keller: Making Sense of Life: Explaning Biological Development Models, Metaphors, and Machines. Harvard University Press, Cambridge, Massachussets, 2002]. Heredity.
    • Leydesdorff, L. (2004). Sturen met een dichtgeplakte voorruit: Duurzame ontwikkeling en technologische innovatie. EUForum, 3(4), 28-29.
    • Leydesdorff, L., & Ward, J. R. (2004). Communication of science shop mediation: A kaleidoscope of university-society relations, INTERACTS: Improving Interaction between NGOs, Universities, and Science Shops: Experiences and Expectations. Fifth RTD Framework Programme, The European Commission/DG 12. Amsterdam: ASCoR.
    • Sogaard Jorgensen, M., Hall, I., Hall, D., Gnaiger, A., Schroffenegger, G., Brodersen, S., ... Leydesdorff, L. (2004). Democratic governance through interaction between NGOs, universities and science shops: Experiences, expectations, recommendations. Final Report of INTERACTS, EU Fifth Framework Programme. Amsterdam: ASCoR.
    • Wagner, C. S., Cave, J., Leydesdorff, L., Allee, V., Graafland, I., Perez, R., & Botterman, M. (2004). ERAnets: Evaluation of networks of collaboration between participants in IST research and their evolution to collaborations in the European Research Area (ERA). Inception report. ERAnets Technical Report TR-152-EC. Leiden: RAND Europe.
    • Wagner, C. S., Cave, J., Leydesdorff, L., Allee, V., Graafland, I., Thomson, R., & Venema, M. (2004). Network analyses: Exploring payways among three hubs. ERAnets Technical Report TR-183-EC. Leiden: RAND Europe.
    • Wagner, C. S., Cave, J., Leydesdorff, L., Allee, V., Graafland, I., Thomson, R., ... Botterman, M. (2004). ERAnets: Phase 1 Progress Report. Technical Report TR-178-EU. Leiden: RAND Europe.
    • Zhou, P., & Leydesdorff, L. (2004). China's research outcome in nanotech takes the lead in the world in 2004. Science and Technology Daily.

    1994

    • Leydesdorff, L. (1994). Wetenschap laat zich niet zomaar sturen. Zeno, 1, 12-15. [details]

    2019

    • Hellsten, I. R., & Leydesdorff, L. (2019). The socio-semantics of science: Heterogenous n-mode networks. Abstract from INSNA XXXVIV Sunbelt 2019 conference, Montreal, Canada.

    2018

    • Hellsten, I. R., & Leydesdorff, L. (2018). Topic-Actor networks on Twitter: Automated approach to the analysis of socio-semantic networks. Abstract from XXXVIII Sunbelt 2018 Conference, Utrecht, Netherlands.

    2015

    • Groenewegen, P., Hellsten, I., & Leydesdorff, L. (2015). Social networks as a looking glass on the social networks community. Abstract from Paper presented at the meeting of the International Sunbelt Social Network, Brighton, UK, .
    • Leydesdorff, L. (2015). Evolutionary and institutional models of the triple helix of (i) novelty production, (ii) wealth generation, and (iii) normative control in innovation ecosystems. Abstract from Paper presented at the Conference of the World Complexity Science Academy, Amsterdam., .
    • Leydesdorff, L. (2015). Mutual redundancies and triple contingencies among perspectives on horizons of meaning.
    • Leydesdorff, L., & Zhou, P. (2015). An international comparison of the citation impact of chinese journals with priority funding. 160-171.
    • Leydesdorff, L., Heimeriks, G., & Rotolo, D. (2015). Journal portfolio analysis for countries, cities, and organizations: Maps and comparisons. Abstract from Paper presented at the Atlanta Conference on Science and Innovation Policy, Atlanta, GA. Book of Abstracts, p. 71, .
    • Lucio Arias, D. P., Velez-Cuartas, G., & Leydesdorff, L. (2015). SciELO citation index and web of science: Distinctions in the visibility of regional science. 1152-1160.

    2014

    • Heimeriks, G., Alkemade, F., & Leydesdorff, L. (2014). The path and place dependent evolution of PV technology. Abstract from Paper presented at the Geography of Innovation 2014, .
    • Hellsten, I., & Leydesdorff, L. (2014). The construction of interdisciplinarity: Climatic Change -journal, 1977-2013. Abstract from Changing climate-change communication: A conference on the interactions between culture, society and language in the context of global warming, VU University, Amsterdam, .
    • Leydesdorff, L. (2014). Can the cognitive process of science be simulated?. Poster session presented at Poster presented at the Workshop Simulating the Social Processes of Science, Lorentz Center, Leiden University, Leiden, .

    2013

    • Adams, J., Gurney, K., Hook, D., & Leydesdorff, L. (2013). Collaboration in Africa: Networks or clusters?. Abstract from Paper presented at the International Society for Scientometrics and Informetrics Conference, Vienna, .
    • Leydesdorff, L. (2013). In search of a sociological theory of innovation: Trajectories, regimes, and translations among perspectives. Abstract from Paper presented at the Amsterdam Workshop on Social Networks and Organizations: Theoretical Advances in Network Research, Free University, Amsterdam, .
    • Leydesdorff, L. (2013). Patents as an analytical lens on the triple helix of university-industry-government relations. Abstract from Paper presented at the workshop “Where is Applied Research Going?” Triple Helix International Conference, London, .
    • Leydesdorff, L. (2013). The different topologies of latent semantic analysis (LSA) and social network analysis (SNA), and their relevance for the generation of discursive knowledge. 272-273.
    • Leydesdorff, L., & Baumgartner, S. E. (2013). Group-based trajectory modeling of citations in scholarly literature: Dynamic qualities of "transient" and "sticky knowledge Claims". Abstract from Paper presented at the Global TechMining Conference, Atlanta, GA, .
    • Leydesdorff, L., & Ivanova, I. A. (2013). Mutual redundancies in interhuman communications: Steps towards a calculus of meaning processing. Abstract from Paper presented at the Annual Conference of the American Society for Cybernetics, Bolton, UK, .
    • Leydesdorff, L., Chen, C., Kushnir, D., & Rafols, I. (2013). Patent mapping in geographic and cognitive dimensions: A lens to knowledge-based innovation policies. Abstract from Paper presented at the Biennial Atlanta Conference on Science and Innovation, Atlanta, GA., .
    • Leydesdorff, L., Ivanova, I. A., & Strand, Ø. (2013). University-industry-government relations and the triple-helix indicator. Abstract from Paper presented at the Triple Helix International Conference, London, .
    • Leydesdorff, L., Kushnir, D., & Rafols, I. (2013). Overlay maps of patents based on IPC classes. Abstract from Paper presented at the Conference on Science and Technology Indicators, Berlin, .
    • Leydesdorff, L., Rafols, I., & Chen, C. (2013). Interactive overlays of journals and the measurement of interdisciplinarity. Abstract from Paper presented at the International Society for Scientometrics and Informetrics Conference, Vienna, .
    • Perevodchikov, E., Uvarov, A., & Leydesdorff, L. (2013). Measuring synergy in the Russian innovation systems. Abstract from Paper presented at the Triple Helix International Conference, London, .
    • Rotolo, D., Rafols, I., Hopkins, M., & Leydesdorff, L. (2013). Building a multi-perspective scientometric approach on tentative governance of emerging technologies. Abstract from Paper presented at the International Society for Scientometrics and Informetrics Conference, Vienna, .
    • Rotolo, D., Rafols, I., Hopkins, M., & Leydesdorff, L. (2013). Mapping the de facto governance of emerging science and technologies. Abstract from Paper presented at the Biennial Atlanta Conference on Science and Innovation, Atlanta, GA, .

    2012

    • Leydesdorff, L., & Strand, O. (2012). Triple-helix relations and potential synergies among technologies, industries, and regions in Norway.. 33.
    • Leydesdorff, L., Rotolo, D., & Rafols, I. (2012). Bibliometric perspectives on medical innovation using the Medical Subject Headings (MeSH) of PubMed.. Abstract from 2nd Global TechMining Conference, .
    • Leydesdorff, L., Rotolo, D., & Rafols, I. (2012). Multiple scientometric perspectives on medical innovation: Using the Medical Subject Headings (MeSH) of PubMed in the case of "RNA interference".. 73. Abstract from Annual meeting of the Society for Social Studies of Science (4S) and the European Association for the Study of Science and Technology (EASST), .
    • Milojević, S., Chen, C., Hemminger, B. M., Leydesdorff, L., Priem, J., & Weingart, S. B. (2012). Information visualization state of the art and future directions. Abstract from 75th ASIS&T Annual Meeting, .
    • Rafols, I., Leydesdorff, L., O'Hare, A., Nightingale, P., & Stirling, A. (2012). How journal rankings can suppress interdisciplinary research.. Abstract from Workshop on “The Organisation, Economics and Policy of Scientific Research”, Turin, .
    • Rafols, I., Leydesdorff, L., O'Hare, A., Nightingale, P., & Stirling, A. (2012). How journal rankings can suppress interdisciplinary research.. Poster session presented at Poster presented at the Science of Team Science conference 2012, Chicago, USA, .

    2011

    • Leydesdorff, L. (2011). Comparison of the Integrated Citation Impacts of Journals, Nations, and Institutions in the set journals of "Nanoscience & Nanotechnology". Abstract from Paper presented at the Atlanta Conference on Science & Innovation Policy, Georgia Institute of Technology, Atlanta GA, .
    • Leydesdorff, L. (2011). Entropy methods. Abstract from HSS11 (Högskola och Samhälle i Samverkan), Høgskolen i Ålesund, .
    • Leydesdorff, L. (2011). Mapping the geography of science in terms of postal addresses versus specialties and disciplines. Abstract from Paper presented at the Workshop on the Geography of Science, Eindhoven Center for Innovation Studies, Technical University Eindhoven, .
    • Leydesdorff, L. (2011). New developments in citation analysis: Integrated impact indicators.. Abstract from Paper presented at the Annual Meeting of the Society for the Social Studies of Science, Cleveland, OH, .
    • Leydesdorff, L., & Rafols, I. (2011). Indicators of the interdisciplinarity of journals: diversity, centrality, and citations. Abstract from Paper presented at the Symposium of the International Network of Interdisciplinarity and Transdisciplinarity, University Utrecht, .
    • Leydesdorff, L., & Rafols, I. (2011). Interactive overlays: a new method for generating global journal maps from web-of-science data. Abstract from Paper presented at the Annual Meeting of the Society for the Social Studies of Science, Cleveland, OH, .
    • Leydesdorff, L., & Shelton, R. D. (2011). University patenting and funding incentives. Abstract from Triple Helix IX International Conference: "Silicon Valley: Global Model or Unique Anomaly?", .
    • Leydesdorff, L., Hammarfelt, B., & Salah, A. (2011). Journal citation maps for the Arts & Humanities Citation Index.. Abstract from First Global Tech-mining Conference, Georgia Institute of Technology, Atlanta, GA, .
    • Rafols, I., Hopkins, M., & Leydesdorff, L. (2011). Diffusion and network formation of emerging technologies: the case of RNA interference. Abstract from Paper presented at the Third Annual Conference of the Society for the Study of Nanoscience and Emerging Technologies (S.NET), Tempe AZ, .

    2010

    • Bornmann, L., de Moya-Anegon, F., & Leydesdorff, L. (2010). Does scientific advancement lean on the shoulders of mediocre research? An investigation of the Ortega hypothesis. 177.
    • Daekin, M., & Leydesdorff, L. (2010). The Triple Helix and the Evolution of Smart Cities under the Cultural Reconstruction and Governance of the Urban Renaissance.
    • Leydesdorff, L. (2010). "The Emergence of Nanotechnology", Places & Spaces: Mapping Science Exhibit. Paper presented at Royal Society Global Science Report Launch Conference, .
    • Leydesdorff, L. (2010). Husserl’s Cogitata and the Simulation of Double Contingencies in Interhuman Interactions.
    • Leydesdorff, L. (2010). Semiosis and the Communication of Meaning in Social Networks. Paper presented at Sunbelt XXX: International Sunbelt Social Network Conference, .
    • Leydesdorff, L., & Rafols, I. (2010). How do Emerging Technologies Conquer the World: Patterns of Diffusion of Research Technologies.
    • Leydesdorff, L., & Rafols, I. (2010). How emerging technologies conquer the world: diffusion, differentiation, and transformation into research technologies.
    • Leydesdorff, L., & Rafols, I. (2010). Indicators of the Interdisciplinarity of Journals: Diversity, Centrality, and Citations.
    • Leydesdorff, L., & Salah, A. (2010). Journal Mapping in the Humanities on the basis of Arts & Humanities Citation Index.
    • Rafols, I., & Leydesdorff, L. (2010). Analyzing SPRU’s research capabilities. A mixed survey-bibliomtric method for mapping interdisciplinary organizations. 177.
    • Rafols, I., Porter, A., & Leydesdorff, L. (2010). The use of global maps of science in management and policy contexts.
    • Rafols, I., Porter, A., & Leydesdorff, L. (2010). Visualisation of knowledge domains in interdisciplinary research organizations.

    2009

    • Leydesdorff, L. (2009). Animations on the Basis of Quantitative Applications of Actor-Network Theory ANT. Paper presented at Paper presented at the Annual Meeting of the Society for Social Studies of Science, Washington, DC, .
    • Leydesdorff, L. (2009). Making Your Own Science Maps. Paper presented at 12th International Conference on Scientometrics and Informetrics ISSI, .
    • Leydesdorff, L., & Lucio-Arias, D. (2009). The Dynamics of Exchanges and References among Scientific Texts, and the Self-Organization of Discursive Knowledge. Paper presented at Paper presented at the Annual Meeting of the Society for Social Studies of Science, Washington, DC, .
    • Leydesdorff, L., & Probst, C. (2009). Communication Studies as an interdisciplinary field of science: its delineation in terms of scientific journals. Paper presented at 12th International Conference on Scientometrics and Informetrics ISSI, .
    • Lucio-Arias, D., & Leydesdorff, L. (2009). Configurational Information and Discursive Knowledge in Scientific Specialties.

    Award

    • Leydesdorff, L. (2016). Best Article.
    • Leydesdorff, L. (2011). Visiting Professorship..
    • Leydesdorff, L. (2011). Honorary Fellow..
    • Leydesdorff, L. (2011). Best paper award..

    Membership

    • Leydesdorff, L. (2012). Recommendations for an optimised implementation of Horizon 2020, Copenhagen Research Forum II [vice-chair Social Sciences]., Technical University of Denmark, Lyngby.
    • Leydesdorff, L. (2012). Visions for Horizons 2020, Copenhagen Research Forum [vice-chair Social Sciences]., Technical University of Denmark, Lyngby.
    • Leydesdorff, L. (2012). Vice-President of the Social Science Committee, the Copenhagen Research Forum (Danish Presidency of the EU).

    Media appearance

    • Leydesdorff, L. (14-05-2016). "In debat over citeren te weinig oog voor kwaliteit werk Nijkamp", NRC, 14 mei 2016, p. W11. "In debat over citeren te weinig oog voor kwaliteit werk Nijkamp", NRC, 14 mei 2016, p. W11.
    • Leydesdorff, L. (01-04-2016). Knowledge-Based Economy puts Universities at the Heart of Entrepreneurship, Thomson Reuters: Trends in the Knowledge-based Economy , April 2016; at http://stateofinnovation.thomsonreuters.com/knowledge-based-economy-puts-universities-at-the-heart-of-entrepreneurship. Knowledge-Based Economy puts Universities at the Heart of Entrepreneurship, Thomson Reuters: Trends in the Knowledge-based Economy , April 2016; at http://stateofinnovation.thomsonreuters.com/knowledge-based-economy-puts-universities-at-the-heart-of-entrepreneurship.
    • Leydesdorff, L. (11-03-2015). How synergies in university-industry-government relations can shape innovation systems. [Print] Theory Talk #68. http://www.theory-talks.org/2015/03/theory-talk-68.html. How synergies in university-industry-government relations can shape innovation systems.. http://www.theory-talks.org/2015/03/theory-talk-68.html
    • Leydesdorff, L. (01-01-2014). The Triple Helix, the Complexity of Technological Innovations, and the Decomposition of National Innovation Systems. An interview with Loet Leydesdorff by Ruth Knoblich. [Print] The Global Politics of Science and Technology Vol. I: Concepts from International Relations and Other Disciplines. Berlin: Springer (pp. 251-258. The Triple Helix, the Complexity of Technological Innovations, and the Decomposition of National Innovation Systems. An interview with Loet Leydesdorff by Ruth Knoblich..
    • Leydesdorff, L. (01-01-2014). Han Woo Park, an interview with Loet Leydesdorff: The past, present, and future of the Triple Helix in the age of big data. [Print]. Han Woo Park, an interview with Loet Leydesdorff: The past, present, and future of the Triple Helix in the age of big data.. http://dx.doi.org/10.1007/s11192-013-1123-4

    Journal editor

    • Adamo, G. (editor), Allwinkle, S. (editor), Caragliu, A. (editor), Cooper, I. (editor), Cruickshank, P. (editor), Deakin, M. (editor), Del Bo, C. (editor), Janssen, M. (editor), Kuk, G. (editor) & Leydesdorff, L. (editor) (2011). Journal of Urban Technology (Journal).
    • Leydesdorff, L. (editor) & Meyer, M. (editor) (2007). Scientometrics (Journal).
    • Leydesdorff, L. (editor) & Meyer, M. (editor) (2007). Scientometrics (Journal).
    • Leydesdorff, L. (editor) & Meyer, M. (editor) (2003). Scientometrics (Journal).

    Talk / presentation

    • Hellsten, I. (invited speaker) & Leydesdorff, L. (invited speaker) (1-7-2016). Translational Research in Medicine: Multi-modal network approach, Networks in the Global World’16: Multiple Structures, St. Petersburg.
    • Leydesdorff, L. (invited speaker) (16-12-2015). In search of a network theory of innovation: How to combine Luhmann’s systems theory with Latour’s Actor network theory?, Keynote at European Academy of Technology and Innovation Assessment, Bad Neuenahr-Ahrweiler, Germany.
    • Leydesdorff, L. (invited speaker) (21-8-2015). The triple helix of (i) novelty production, (ii) wealth generation, and (iii) normative control: A neo-evolutionary model of innovation systems, Keynote at the Triple Helix Conference: Academic-Industry-Government Triple Helix Model for fast-developing countries., Tsinghua University, Beijing.
    • Leydesdorff, L. (invited speaker) (30-6-2015). The triple helix of knowledge production, wealth generation, and normative control: A neo-evolutionary model of innovation ecosystems, Keynote at the Iternational Conference at the International Society of Scientometrics and Infometrics, Boğaziçi University, Istanbul, Turkey.
    • Leydesdorff, L. (invited speaker) (27-6-2014). Relations, positions, and perspectives: In search of a network theory of innovations., Keynote lecture at the NetGlow '14 Conference, St. Petersburg, Russia, St. Petersburg, Russia.
    • Leydesdorff, L. (invited speaker) (29-5-2014). The Triple Helix of innovations: Neo-institutional and neo-evolutionary models for explaining the presence or absence of systemness at regional and national levels., Invited lecture at the Institute for Management and Technology, Lucca, Italy.
    • Leydesdorff, L. (invited speaker) (12-5-2014). The European Union, China, and the United States in the top-1% and top-10% layers of most-frequently-cited publications: Competition and collaborations., Invited lecture at Birkbeck, University of London, London, UK.
    • Leydesdorff, L. (invited speaker) (14-3-2014). Patent mapping in geographic and cognitive dimensions: A lens to knowledge-based innovation policies., Invited lecture at the Workshop "Analyzing Policy Impacts on Biotechnology Innovation Using Patent Data", Washington DC, USA.
    • Leydesdorff, L. (invited speaker) (11-11-2013). The triple helix of university-industry-government relations, Invited lecture at the Institute for Scientific and Technical Information of China, Beijing.
    • Leydesdorff, L. (invited speaker), Rafols, I. (invited speaker) & Chen, C. (invited speaker) (11-11-2013). Interactive overlays of journals and the measurement of interdisciplinarity, Invited lecture at the National Library of the Chinese Academy of Science, Beijing.
    • Leydesdorff, L. (invited speaker) (8-11-2013). The triple-helix indicator of synergy in innovation systems, Keynote at the International Conference on Scientometrics and University Evaluation, Ningbo.
    • Leydesdorff, L. (invited speaker), Rafols, I. (invited speaker) & Chen, C. (invited speaker) (6-11-2013). Interactive overlays of journals and the measurement of interdisciplinarity., Invited lecture at the Zhejiang University, Hangzhou.
    • Leydesdorff, L. (invited speaker) (5-11-2013). The triple helix of university-industry-government relations, Invited lecture at Zhejiang University, Hangzhou.
    • Leydesdorff, L. (invited speaker) (4-11-2013). The triple helix of university-industry-government relations, Invited lecture at Nanjing University, Nanjing..
    • Leydesdorff, L. (invited speaker), Alkemade, F. (invited speaker), Heimeriks, G. (invited speaker) & Hoekstra, R. (invited speaker) (17-10-2013). Patent mapping in geographic and cognitive dimensions: A lens to knowledge-based innovation policies, Colloquium e-Humanities, Royal Academy of Arts and Sciences, Amsterdam..
    • Leydesdorff, L. (invited speaker) (27-8-2013). The triple helix of university-industry-government relations as an evolutionary model of (e.g., regional) innovation systems, Invited lecture at the Master Class Measuring & Modelling Dynamics in Innovation Systems, Universiteit Utrecht, Utrecht.
    • Leydesdorff, L. (invited speaker) (8-7-2013). The triple helix indicator, Invited lecture at the Triple Helix International Conference, London.
    • Leydesdorff, L. (invited speaker) (7-7-2013). The triple helix as an evolutionary model of (national or regional) innovation systems, Keynote at the Master Class of the International Triple Helix Association, Oxford and Cambridge Club, London.
    • Leydesdorff, L. (invited speaker) (5-6-2013). International co-authorship relations in the (social) science citation index: Is internationalization leading the network?, Invited lecture at the European University, St. Petersburg, Russia.
    • Leydesdorff, L. (invited speaker) (4-6-2013). Scientometric instruments for analyzing the knowledge-based economy, Invited lecture at the European University, St. Petersburg, Russia.
    • Leydesdorff, L. (invited speaker) (19-4-2013). Patents as an analytical lens on the triple helix of university-industry-government relations, Invited lecture at the workshop on Intellectual property and university entrepreneurship, Birkbeck University, London.
    • Leydesdorff, L. (invited speaker) (30-3-2013). The triple helix of university-industry-government relations: Neo-institutional and neo-evolutionary models of knowledge based innovation systems, Keynote at the 4th International Conference of SKIE: “Knowledge, Innovation, & Education, Seoul National University, Seoul.
    • Leydesdorff, L. (invited speaker) (27-3-2013). The past, Present, and future of the triple helix model, Invited lecture at the YeungNam University, Department of Media & Communication, Daegu, Korea.
    • Leydesdorff, L. (invited speaker) (21-2-2013). The triple helix as an evolutionary model of national and regional innovation systems., Invited lecture at the Università degli Studi di Napoli, Frederico II, Naples.
    • Leydesdorff, L. (invited speaker) (17-1-2013). The triple helix as an evolutionary model of national and regional innovation systems, Invited lecture at the Instituto the Gestión de la Innovación y del Conocimiento, Ingenio, Valencia.
    • Leydesdorff, L. (invited speaker) (11-8-2012). Hyperincursive cogitata and incursive cogitantes: scholarly discourse as a strongly anticipatory system., Invited paper at the 10th Intern. Conference on Computing Anticipatory Systems CASYS 2011, Liége, Belgium.
    • Leydesdorff, L. (invited speaker) (23-7-2012). Novel indicators of research impact and policy implications., Portfolio Analysis Symposium, National Institute of Health, Bethesda DC, USA.
    • Leydesdorff, L. (invited speaker) (9-7-2012). Advances in science visualization: social networks, semantic maps, and discursive knowledge., Invited lecture at Conference on Text Mining, London School of Economics, London.
    • Leydesdorff, L. (invited speaker) (4-6-2012). The triple helix as an evolutionary model of (national) innovation systems., Invited lecture at ManETEI summer school on technology dynamics, Grenoble Ecole de Management, Grenoble.
    • Leydesdorff, L. (invited speaker) (21-5-2012). The triple helix as an evolutionary model of (national) innovation systems., Invited lecture at Austrian Institute of Technology, Vienna.
    • Leydesdorff, L. (invited speaker) (2012). (2012). Science & Technology Studies (STS), Luhmann's social systems theory, and the scientometric operationalization., Series of guest lectures at the University of Vienna, Vienna.
    • Leydesdorff, L. (invited speaker) (2012). (2012). The communication of meaning and information, and the structuration of expectations as discursive knowledge: I. Introduction., Semiotic Institute Online.
    • Leydesdorff, L. (invited speaker) (2012). (2012). The communication of meaning and information, and the structuration of expectations as discursive knowledge: III. Scientific communication and cognitive codification., Semiotic Institute Online.
    • Leydesdorff, L. (invited speaker) (2012). (2012). The communication of meaning and information, and the structuration of expectations as discursive knowledge: II. "Meaning" as a sociological concept., Semiotic Institute Online.
    • Leydesdorff, L. (invited speaker) (2-11-2011). Triple helix models: neo-institutional and neo-evolutionary., Lezingenreeks “Innovatie,” Universiteit Antwerpen, Antwerpen.
    • Leydesdorff, L. (invited speaker) (16-8-2011). Standards for science metrics, classifications, and mapping., School of Library and Information Science, Bloomington, IN.
    • Leydesdorff, L. (invited speaker) (10-8-2011). The geography of science in terms of both postal addresses and disciplines., InfoVis Laboratory, Bloomington, IN.
    • Leydesdorff, L. (invited speaker) (12-7-2011). The triple helix: From institutional relations to competing subdynamics., Conference on the Triple Helix of University-Industry-Government Relations, Opening Session, Stanford University.
    • Leydesdorff, L. (invited speaker) (9-6-2011). The geography of science in terms of both postal addresses and disciplines., School of Public Policy and Management, Tsinghua University, Beijing, Beijing.
    • Leydesdorff, L. (invited speaker) (9-6-2011). The mapping of publication patterns - geographically and in terms of disciplines., Library of the Chinese Academy of Science (LCAS), Beijing.
    • Leydesdorff, L. (invited speaker) (8-6-2011). New developments in citation analysis: Percentile ranks instead of averages, Institute for Scientific and Technical Information of China (ISTIC), Beijing.
    • Leydesdorff, L. (invited speaker) (7-6-2011). Analysis of a knowledge-based economy in terms of a triple helix of university-industry-government relations., Conference of the International Council for Scientific and Technical Information (ICSTI), “Upgrading Information to Knowledge”, Beijing.
    • Leydesdorff, L. (invited speaker) (4-5-2011). The past, present and future of the triple helix model., HSS11 Conference on the University College & Society, Aalesund, Aalesund.
    • Leydesdorff, L. (invited speaker) (31-3-2011). Communication of information, meaning, and knowledge., Colloquium “Complex Systems and Computational Social Science, University College of Dublin, Dublin.
    • Leydesdorff, L. (invited speaker) (4-3-2011). The triple helix perspective of innovation systems., SPRU, Science & Technology Policy Research, University of Sussex, Sussex.
    • Leydesdorff, L. (invited speaker) (2011). (2011). Integration and differentiation in collaborative and competitive relations among, between, and within universities, industry, and government., The Commercialisation of University Research Workshop, Birkbeck Centre for Innovation Management, Birkbeck University of London, October 23-24, 2011, London.
    • Leydesdorff, L. (invited speaker) (2011). (2011). Communication in scholarly discourse: social, semantic, and epistemic networks., ARS 2011: Third International Workshop on Social Network Analysis - Collaboration Networks and Knowledge Diffusion: Theory; Data and Methods, June 23-25, 2011, Naples.
    • Leydesdorff, L. (invited speaker) (2011). (2011). New developments in citation analysis: percentile ranks instead of averages?, Workshop on “Science Metrics, Classifications, and Mapping Standards”, August 11-12, 2011, Bloomington, IN.
    • Leydesdorff, L. (speaker) (17-12-2010). Michel CALLON’s research under the prism of scientometric analysis, Invited lecture: Paper presented at the Conference in Honour of Michel Callon’s 65th Birthday, École Nationale Supérieure des Mines, Paris.
    • Leydesdorff, L. (speaker) (4-12-2010). First Conference of the World Complexity Science Academy on "Complexity Systemic Sciences and the Key Global Challenges of Our Times", Invited commentator, Bologna.
    • Leydesdorff, L. (speaker) (2-12-2010). The Triple Helix of University-Industry-Government Relations, Invited Lecture - University of Chieti-Pescara, Pescara.
    • Leydesdorff, L. (speaker) (2-11-2010). How emerging technologies conquer the world: diffusion, differentiation, and transformation into research technologies, Colloquium of the Department of Innovation Studies, Utrecht University, Utrecht.
    • Leydesdorff, L. (speaker) (26-10-2010). Scientometric indicators and the operationalization of variables in science and technology studies, Invited Keynote: Colloquium “Academic Practice in the 21th Century, Centre For R&D Monitoring (ECOOM), Gent, Gent.
    • Rafols, I. (speaker), Porter, A. (speaker) & Leydesdorff, L. (speaker) (22-10-2010). Indicateurs pour "ouvrir" le débat. Le cas de l’interdisciplinarité, Ministère de l’Enseignement supérieur et de la Recherche, Invited keynote address: Colloquium for the occasion of ‘Les 20 ans de l’OST’., Observatoire des Sciences et des Techniques (OST).
    • Leydesdorff, L. (speaker) (20-10-2010). Regional Retention versus Global Competition in a Triple Helix Model: Can Evolutionary Theorizing Inform the Institutional Arrangements, Keynote address to the International Conference on University, Industry, and Government Linkages, Triple Helix VIII, La Salle University, Madrid.
    • Leydesdorff, L. (speaker) (21-6-2010). The Structuration of Expectations: Constructing a Knowledge-based Order, Colloquium van de onderzoeksgroepen Governance of Complex Systems en DRIFT, Bestuurskunde, Erasmus Universiteit, Rotterdam.
    • Leydesdorff, L. (speaker) (4-6-2010). Bibliométrie - Pajek - Web of Science, Invited teacher: Journée de l’Atelier, École des Hautes Études en Sciences Sociales (EHESS),, Paris.
    • Leydesdorff, L. (speaker) (3-6-2010). Knowledge-Based Systems, Networks of Texts and Authors, and Codification., Invited Keynote: EHESS - Laboratoire de démographie et d’histoire sociale (LaDéHiS) and INED - Service Méthodes Statistiques (SMS) “Networks of scientific collaborations, Paris.
    • Leydesdorff, L. (speaker) (17-4-2010). Roundtable about "Niklas Luhmann and Social Theory", Roundtable, Department of Sociology, McGill University, Montreal.
    • Leydesdorff, L. (speaker) (16-4-2010). Giddens’ "Structuration," Luhmann’s "Self-organization," and the Operationalization of the Dynamics of Meaning, Paper presented at the Workshop “Social Systems Theory and Europe”, Seventh International Conference of the Council for European Studies, Montreal, Montreal.
    • Leydesdorff, L. (speaker) (2-4-2010). Journal Citation Analysis and the Baseline Problem of Evolving Networks of Scientific Communication, Paper presented at a visit to the Seoul National University, Seoul.
    • Leydesdorff, L. (speaker) (31-3-2010). The Triple Helix Indicator of University-Industry-Government Relations, Paper presented at a visit to the Seoul National University, Seoul.
    • Leydesdorff, L. (speaker) (2010). The sociology of scientific knowledge production, Paper presented at a visit to the Seoul National University, Seoul.
    • Leydesdorff, L. (speaker) (7-10-2009). "Structuration" and Intellectual Organization in the Sciences, (invited lecture), Workshop Modeling Science – Understanding, forecasting, and communicating the science system, Virtual Knowledge Studio and Rathenau Institute, Amsterdam.
    • Leydesdorff, L. (speaker) & Yuan, S. (speaker) (10-9-2009). Scientific co-authorship networks in national and international contexts, (keynote address), 7th Meeting of the Classification and Data Analysis Group (CLADAG) of the Italian Statistical Society (SIS); Salvatore Ingrassia and Roberto Ricci (Eds.), pp. 165-168, Catania/Padua: CLEUP.
    • Leydesdorff, L. (speaker) (4-9-2009). Scientometric indicators and the operationalization of variables in science and technology studies, invited lecture, Social and Behavioural Sciences Community, League of European Research Universities, Amsterdam.
    • Leydesdorff, L. (speaker) (19-6-2009). The Triple Helix Indicator of University-Industry-Government Relations, Keynote address to the 8th International Conference of the Triple Helix of University-Industry-Government Relations, Glasgow.
    • Leydesdorff, L. (speaker) (29-5-2009). Round table contribution to the OECD Regional Innovation Review of Piedmont, Round table contribution, Turin.
    • Leydesdorff, L. (speaker) (28-5-2009). The Measurement of the Knowledge Base of an Economy and university-industry-government relations, Invited Lecture, Faculty of Communication Sciences, Università della Svizzera Italiana, Lugano.
    • Leydesdorff, L. (speaker) & Probst, C. (speaker) (27-5-2009). Communication Studies as an interdisciplinary field of science: its delineation in terms of scientific journals, EpiDay: First USI-Com Young Scholars Research Day, Faculty of Communication Sciences, Università della Svizzera Italiana, Lugano.
    • Leydesdorff, L. (speaker) (18-3-2009). The Triple Helix of university-industry-government relations: (neo)institutional and (neo)evolutionary perspectives, invited lecture at the research group of university-industry-government relations, Newcastle Business School.
    • Leydesdorff, L. (speaker) (2-3-2009). The Knowledge-based Economy and a Triple Helix of university-industry-government relations, Invited lecture at “Creating Smarter Cities”, Napier University, Edinburgh.
    • Leydesdorff, L. (speaker) (1-9-2003). The knowledge base of an economy as a subject of science, technology, and innovation studies, Tsinguah University, Beijing.
    • Leydesdorff, L. (speaker) (1-9-2003). The knowledge base of innovation systems and the study of science, technology and innovation, Institute for Scientific and Technical Information of China, ISTIC, Beijing.
    • Leydesdorff, L. (speaker) & Wagner, C. S. (speaker) (29-8-2003). Mapping global science using international Co-authorships: A comparison of 1990 amd 2000, COLLNET Workshop on "Collaboration in Science and Technology", Beijing.
    • Leydesdorff, L. (speaker) (29-8-2003). The mutual information as an indicator of complexity and self-organization in relational systems, COLLNET Workshop on "Collaboration in Science and Technology", Beijing.
    • Leydesdorff, L. (speaker) (15-2-2003). Understanding Society as an information and communication technology, Invited speech to the Spring Seminar, Lincoln, UK.
    • Leydesdorff, L. (speaker) (18-1-2003). Knowledge-based Innovation Systems and a Triple Helix of University-Industry-Government Relations, Invited lecture, Strassbourg.
    • Leydesdorff, L. (speaker) (2003). Translations at interfaces in Triple Helix configurations: Mapping the case of 'Stem Cell' research, International Conference on Scientometrics and Informatrics ISSI, Beijing.
    • Leydesdorff, L. (speaker) (2003). Measuring and Modeling the Knowledge Base of Innovations, 9th International Conference on Scientometrics and Informetrics by the International Society for Scientometrics and Informetrics ISSI, Beijing.
    • Leydesdorff, L. (speaker) (2003). Communication and Knowledge: How is the Knowledge base of an Economy Constructed, 15th Annual Meeting on Socio-Economics by the Society for Scientometrics and Informetrics, by the Society for the Advancement of Socio-Economics SASE, Aix-en-Provence.
    • Leydesdorff, L. (speaker) (2003). The Knowledge Base of an Economy: What is it? Can it be measured? Can it be modeled?, Annual Meeting of the European Association for Political and Evolutionary Economics EAEPE. The Information Society: Understanding its Institutions Interdisciplinarily, Maastricht.
    • Leydesdorff, L. (speaker) (2003). The opening of systems theory: Report of the Luhmann Workshop at the Copenhagen Business School, Conference The Opening of Systems Theory, Copenhagen.
    • Leydesdorff, L. (speaker) (2003). How is meaning codified in networks of words representing 'Stem-Cell' research, it's application and relevant policy debates, Society for the Social Studies of Science 4S, Atlanta, GA.
    • Leydesdorff, L. (speaker) (2003). The Triple Helix of University-Industry-Government Relations: A Neo-Evolutionary Model of Innovations, Conference on the Knowledge-based Economy and Regional Economic Development, Memorial University of Newfoundland, St. John's Canada.
    • Leydesdorff, L. (speaker) (2003). The measurement and mapping of codification in scientific, medical, economic and political contexts, Etmaal van de Communicatiewetenschap, Nijmegen.
    • Leydesdorff, L. (speaker) (2003). Anticipation in social systems, 6th International Conference on Computing Anticipatory Systems, CASYS'03, Liège.
    • Leydesdorff, L. (speaker) (2003). The construction and globalization of knowledge bases innovation systems, Conference The Opening of Systems Theory, Copenhagen.
    • Leydesdorff, L. (speaker) (2003). Anticipatory systems and the processing of meaning: A simulation study using Luhmann's theory of social systems, Conference of the European Social Simulation Association ESSA/SimSoc VI, Groningen.
    • Leydesdorff, L. (speaker) (2002). Aggregated journal-journal citations as indicators of change in the social sciences, Annual Meeting of the European Association for the Study of Science & Technology, York.
    • Leydesdorff, L. (speaker) (2002). Knowledge-based transformations of University-Industry-Government Relations: Can Luhmann's sociology be operationalized?, International Symposium on 'Niklas Luhmann and Organization Theory', EGOS, Munich.
    • Leydesdorff, L. (speaker) & Scharnhorst, A. (speaker) (2002). Scientometric indicators and the evaluation of research in the Internet Age - consequences for national science policy strategies, Workshop of the Förderinitiative "Science Policy Studies", Brandenburgische Akademie der Wissenschaften, Berlin.
    • Leydesdorff, L. (speaker) (2002). Knowledge-based transformations of University-Industry-Government Relations, International Workshop on Science, Technology and Society: Lessons and Challenges, Dept. of Sociology, University of Singapore.
    • Leydesdorff, L. (speaker) (2002). Indicators of the globalization of communication, Workshop on the Internet for Research and Development, Zürich.
    • Leydesdorff, L. (speaker) (2002). The measurement and evaluation of complexity and self-organization in Triple Helix Relations among Universities, Industries and Governments, Fourth Triple Helix Conference, Copenhagen.
    • Leydesdorff, L. (speaker) (2002). Can the 'knowledge-base' of an economy be measured?, Fourth Triple Helix Conference, Copenhagen.
    • Leydesdorff, L. (speaker) (2002). Indicators of innovation in a knowledge-based economy, Colloquium Vakgroep Natuurwetenschappen & Innovatiemanagement, Universiteit Utrecht.
    • Leydesdorff, L. (speaker) (2002). The self-organisation of a knowledge-based society: Regime changes and sustainable development, Complex Dynamics In and Between Social and Eco Systems, Studium Generale, Wageningen.

    Others

    • Leydesdorff, L. (organiser) (8-8-2012 - 10-8-2012). 10th International Triple Helix conference, Bandung, Indonesia. Organiser. (organising a conference, workshop, ...).
    • Leydesdorff, L. (participant) (11-8-2003 - 16-8-2003). Member of the International Programm Committee, Liège. Computing Anticipatory Systems, CASYS'03 (participating in a conference, workshop, ...).
    • Leydesdorff, L. (participant) (18-5-2003 - 21-5-2003). Co-convenor of the 5th International Conference of the Triple-Helix of university-industry-government relations, Milano/Torino (participating in a conference, workshop, ...).
    • Leydesdorff, L. (participant) (2-5-2003 - 5-5-2003). Workshop, Toronto. Dynamics of the Informational Interface (participating in a conference, workshop, ...).
    • Leydesdorff, L. (participant) (28-4-2003). meeting, Brussels. Meeting Program Committee Current Research Information Systems (participating in a conference, workshop, ...).
    • Leydesdorff, L. (participant) (2003). Coordinator, Liège. Network of Excellence PRIME (participating in a conference, workshop, ...).
    • Leydesdorff, L. (participant) (2003). Colloquium Science & Technology Dynamics, University of Amsterdam (participating in a conference, workshop, ...).
    • Leydesdorff, L. (participant) (22-11-2001 - 25-11-2001). Paper presented at the conference 'Fictions of dialogue: Interdisciplinary approaches., Edinburgh. The communicative turn in social systems theory. (participating in a conference, workshop, ...).
    • Leydesdorff, L. (participant) (31-10-2001 - 4-11-2001). Paper presented at the Society for the Social Study of Science conference., Boston, MA. Technology and culture: The dissemination and the potential 'lock-in' of new technologies. (participating in a conference, workshop, ...).
    • Leydesdorff, L. (participant) (5-10-2001 - 8-10-2001). Paper presented at the second conference 'Semiosis, evolution and energy'.. The integration and differentiation of information processing in social systems. (participating in a conference, workshop, ...).
    • Leydesdorff, L. (participant) (24-9-2001 - 25-9-2001). Paper presented at the ISCE seminar 'Practices of Meaning'., Utrecht. The self-organization of the knowledge-based society. (participating in a conference, workshop, ...).
    • Leydesdorff, L. (participant) (13-9-2001 - 15-9-2001). Paper presented at the conference 'New economic windows: New paradigms for the new millennium'., Salerno, Italy. Knowledge-based information systems and the model of a triple helix of university-industry-government relations. (participating in a conference, workshop, ...).
    • Leydesdorff, L. (participant) (13-8-2001 - 18-8-2001). Paper presented at the fifth international conference 'Computing anticipatory systems'., Liège. Appreciative theorizing and formal modeling of complex systems. (participating in a conference, workshop, ...).
    • Leydesdorff, L. (participant) (13-8-2001 - 18-8-2001). Organization of scientific meetings., Liège, Belgium. Fifth international conference 'Computing Anticipatory Systems'. (participating in a conference, workshop, ...).
    • Leydesdorff, L. (participant) (28-6-2001 - 30-6-2001). Paper presented at the conference of the Society for the Advancement of Socio-Economics., Amsterdam. Knowledge-based innovation systems and the model of a triple helix of university-industry-government relations. (participating in a conference, workshop, ...).
    • Leydesdorff, L. (participant) (18-5-2001 - 20-5-2001). Paper presented at the second Vlaams-Nederlands Congres voor Algemene en speciale Wetenschapsfilosofie conference., Amersfoort. De complexe dynamica van wetenschappelijke communicatie. (participating in a conference, workshop, ...).
    • Leydesdorff, L. (participant) (21-3-2001 - 22-3-2001). Paper presented at the conference 'Naeringslivdagene: Netverk som strategi for naeringsutvikling'., Trømso, Norway. An emerging triple helix of university-industry-government relations. (participating in a conference, workshop, ...).
    • Leydesdorff, L. (participant) (2001). Paper presented NOSMO meeting 'Methodologendag'., Amsterdam. The appreciation of models of complex dynamics in the case of technological innovation. (participating in a conference, workshop, ...).
    • Leydesdorff, L. (participant) (2001). Address at scientific meetings, Leiden. Indicators of innovation in a knowledge-based economy (participating in a conference, workshop, ...).
    • Leydesdorff, L. (participant) (2001). Paper presented at the conference 'WS Epiphany'., Brussels. The self-organisation of the knowledge-based society. (participating in a conference, workshop, ...).
    • Leydesdorff, L. (participant) (2001). Address at scientific meetings, Toronto. A model engine for the simulation of 'lock-in', 'break-out', and the dissemination of technological culture (participating in a conference, workshop, ...).
    • Leydesdorff, L. (participant) (18-9-2000 - 19-9-2000). Address at scientific meetings, Nottingham. A methodological perspective on the evaluation of university-industry-government relations (participating in a conference, workshop, ...).
    • Leydesdorff, L. (participant) (26-4-2000 - 29-4-2000). Address at scientific meetings, Rio de Janeiro, Brazil. Mapping university-industry-government relations on the internet: The construction of indicators for a knowledge-based economy (participating in a conference, workshop, ...).
    • Leydesdorff, L. (participant) (21-2-2000 - 22-2-2000). Address at scientific meetings, Amsterdam. The complex interaction between knowledge production, policy, and knowledge use (participating in a conference, workshop, ...).

    1984

    • Leydesdorff, L. (1984). Werknemers en het technologisch vernieuwingsbeleid. [details]

    2017

    • Xue, H. F., Leydesdorff, L., & Ye, F. Y. (2017). Probing Multivariate Indicators for Academic Evaluation. Hangzhou: Library, Zhejiang University. [details]
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  • Ancillary activities
    • No ancillary activities