Robert Tijssen

Professor emeritus of Science and Innovation Studies

Name: Prof.dr. R.J.W. Tijssen
Telephone: +31 71 527 2727
E-mail: tijssen@cwts.leidenuniv.nl
ORCID iD: 0000-0001-5237-9583

Institutional affiliations

Prof. Robert Tijssen holds the Chair of Science and Innovation Studies at Leiden University. He is CWTS board member and coordinator of the Science, Technology and Innovation Studies (STIS) research group at CWTS.

Robert is affiliated to the African Study Centre at Leiden University and a project leader at the LDE Center for Frugal Innovation in Africa. His ties to Africa include a professorship at Stellenbosch University (South Africa), and board membership of South Africa’s DST-NRF Center of Excellence in Scientometrics and Science, Technology and Innovation Policy.

He is also an international research partner and co-investigator at the Centre for Global Higher Education (United Kingdom).

Research and engagement

His scholarly interests and research activities focus on various topics within science and innovation studies, as well as SI-related issues in higher education studies. Most of his studies within this ‘knowledge triangle’ tend to be empirical and quantitative. The current research portfolio includes work on research cooperation, world university rankings, university-industry interactions, socioeconomic impacts of science, but also region-specific topics such as university-developed inclusive innovations in Africa, research excellence in the Global South, and China’s New Silk Road Initiative.

Google Scholar Citations provides an overview of his academic research output and scholarly impact, comprising more than 150 publications with a total of some 6 000 citations.

Robert’s activities extend into science policy and research management. Most of his advisory and consultancy portfolio relates to monitoring and evaluation of university R&D performance, with a strong focus on the development and application of analytical tools and indicators in the context of quality assurance systems, reward and incentive systems, knowledge transfer mechanisms, and commercialization of university research.

Robert is the CWTS project manager of U-Multirank, an open source information platform on the performance of higher education institutions across the globe.

Professor emeritus of Science and Innovation Studies

Faculteit der Sociale Wetenschappen
CWTS

Contact

Winnink J.J., Tijssen R.J.W. & Van Raan A.F.J. (2019), Searching for new breakthroughs in science: How effective are computerised detection algorithms?, Technological Forecasting and Social Change 146: 673-686.
Tijssen R.J.W. (2018), Anatomy of use-inspired researchers: From Pasteur’s Quadrant to Pasteur’s Cube model, Research Policy 47(9): 1626-1638.
Tijssen R.J.W. (2018), Between rhetoric and reality: university reporting on academic research commercialization, entrepreneurship and innovation. In: Hazelkorn E., Coates H. & McCormick A. (Eds.), Research Handbook on Quality, Performance and Accountability in Higher Education: Edward Elgar. 219-231.
Tijssen R.J.W. & Winnink J.J. (2018), Capturing ‘R&D excellence’: Indicators, international statistics, and innovative universities, Scientometrics 114(2): 687-699.
Tijssen R.J.W. & Kraemer-Mbula E. (2018), Research excellence in Africa: Policies, perceptions and performance, Science and Public Policy 45(3): 392-403.
Tijssen R.W.J. & Yegros A. (2017), Brexit: UK universities and European industry (Correspondence), Nature 544(7648): 35-35.
Dongen P. van, Yegros A., Tijssen R. & Claassen E. (2017), The relationships between university IP regimes and scientists´ motivations and their engagement with research commercialisation in Europe, European Journal of Law and Technology 8(2): 1-22.
Grobbelaar S., Tijssen R.J.W. & Dijksterhuis M. (2017), University-driven inclusive innovations in the Western Cape of South Africa: Towards a research framework of innovation regimes, African Journal of Science, Technology, Innovation and Development 9(1): 7-19.
Gielfi G.G., Furtado A.T., Campos A.S. de & Tijssen R.J.W. (2017), University-industry research collaboration in the Brazilian oil industry: The case of Petrobras, Revista Brasileira de Inovação 16(2): 325-350.
Tijssen R.J.W. & Yegros A. (3 December 2016), The most innovative universities: An alternative approach to ranking. THE Blog. London (United Kingdom): Times Higher Education (THE). [blog entry].
Tijssen R.J.W. (23 March 2016), Where next for world university rankings?. THE Blog Posts. London (United Kingdom): Times Higher Education (THE). [blog entry].
Tijssen R.J.W. (5 February 2016), Are world university rankings up to date?. World University News: World University News. [blog entry].
Yegros-Yegros A., Azagra-Caro J.M., López-Ferrer M. & Tijssen R.J.W. (2016), Do university-industry co-publication outputs correspond with university funding from firms?, Research Evaluation 25(2): 136-150.
Winnink J.J., Tijssen R.J.W. & Van Raan A.F.J. (2016), Breakout discoveries in science: What do they have in common?, Proceedings of the 21th International Conference on Science and Technology Indicators. 21st International Conference in Science & Technology Indicators (STI) 13 September 2016 - 16 September 2016 1069-1076.
Zwetsloot F., De Nooijer I. & Tijssen R.J.W. (2016), Maak bedrijfsinvesteringen in universitair onderzoek inzichtelijk: Pleidooi voor internationale samenwerking, TH en MA 3: 43-47.
Azagra-Caro J.M., Tijssen R.J.W. & Yegros-Yegros A. (2016), Measuring macro-level effects of the global economic recession on university-industry research cooperation, Proceedings of the 21th International Conference on Science and Technology Indicators. 21st International Conference in Science & Technology Indicators (STI) 13 September 2016 - 16 September 2016 213-221.
Gielfi G., Furtado A. & Tijssen R.J.W. (2016), R&D funding policy and university-industry research collaboration in Brazil: The case of Petrobras, 1º Encontro da Nacional de Economia Industrial e Inovação 3(4): 1277-1294.
Winnink J.J., Tijssen R.J.W. & Van Raan A.F.J. (2016), Theory-changing breakthroughs in science: the impact of research teamwork on scientific discoveries, Journal of the Association for Information Science and Technology (JASIST) 67(5): 1210-1223.
Tijssen R.J.W. & Winnink J.J. (2016), Twenty-first century macro-trends in the institutional fabric of science: Bibliometric monitoring and analysis, Scientometrics 109(3): 2181-2194.
Zhou P., Tijssen R.J.W. & Leydesdorff L. (2016), University-Industry Collaboration in China and the USA: A Bibliometric Comparison, PLoS ONE 11(11): e0165277.
Tijssen R.J.W., Yegros A. & Winnink J.J. (2016), University–industry R&D linkage metrics: Validity and applicability in world university rankings, Scientometrics 109(2): 677-696.
Tijssen R.J.W. & Wong P.K. (2016), Unravelling complexities of university-industry research interactions: The analytical power of case studies, Research Evaluation 25(2): 119-120.
Tijssen R.J.W. (2016), Wetenswaarde. In: Groen A. in 't, Roon C. de & Slaman P. (Eds.), Leids-Haags Allegorieënlexicon. Delft: Uitgeverij Eburon. 371-381.
Tijssen R.J.W. & Yegros-Yegros A. (2015), Data-mining the world’s science, University-Industry Innovation Magazine 1: 24-27.
Minguillo D., Tijssen R. & Thelwall M. (2015), Do science parks promote research and technology? A scientometric analysis of the UK, Scientometrics 102(1): 701–725.
Winnink J.J. & Tijssen R.J.W. (2015), Early stage identification of breakthroughs at the interface of science and technology: Lessons drawn from a landmark publication, Scientometrics 102(1): 113-134.
Zwetsloot F., Gelauff L. & Tijssen R.J.W. (2015), International comparison of technology transfer data: The devil is in the details. In: Etzkowitz H. & Breznitz S. (Eds.), University Technology Transfer: The Globalization of Academic Innovation: Routledge. 428-435.
Tijssen R.J.W. (2015), Research output and international research cooperation in African Flagship Universities. In: Cloete N., Maassen P. & Bailey T. (Eds.), Contradictory Functions, Knowledge Production and Contradictory Functions in African Higher Education. Higher Education Dynamics Series no. 1. Cape Town: African Minds. 61-74.
Tijssen R.J.W. (2015), Research output and International Research Cooperation in African Flagship Universities. In: Cloete N., Maassen P. & Bailey T. (Eds.), Knowledge Production and Contradictory Functions in African Higher Eduction no. 1 61-74.
Van Dongen P., Winnink J. & Tijssen R. (2014), Academic inventions and patents in the Netherlands: A case study on business sector exploitation, World Patent Information 38: 27-32.
Groenen P., Van Herk H. & Tijssen R.J.W. (2014), Mapping the Journal of Classification. In: Rooij M. de & Putten C.M. van (Eds.), Psychology and Statistics: Ready for the Future? Liber Amicorum for Willem Heiser. Psychology and Statistics: Ready for the Future? Liber Amicorum for Willem Heiser. Leiden: Leiden University. 83-92.
Winnink J.J. & Tijssen R.J.W. (2014), R&D dynamics and scientific breakthroughs in HIV/AIDS drugs development: The case of Integrase Inhibitors, Scientometrics 101(1): 1–16.
Hoekman J., Scherngell T., Frenken K. & Tijssen R.J.W. (2013), Acquisition of European research funds and its effect on international scientific collaboration, Journal of Economic Geography 13(1): 23-52.
Ahlgren P., Persson O. & Tijssen R. (2013), Geographical distance in bibliometric relations within epistemic communities, Scientometrics 95(2): 771-784.
Waltman L.R., Calero-Medina C.M., Kosten J., Noyons E.C.M., Tijssen R.J.W., Van Eck N.J.P., Leeuwen T.N. van, Raan A.F.J. van, Visser M.S. & Wouters P. (2012), The Leiden Ranking 2011/2012: Data collection, indicators, and interpretation, Journal of the American Society for Information Science and Technology 63(12): 2419-2432.
Tijssen R.J.W. (2012), Co-authored research publications and strategic analysis of public-private collaboration, Research Evaluation 21(3): 204-215.
Callaert J., Epping E., Federkeil G., Jongbloed B., Kaiser F. & Tijssen R.J.W. (2012), Data Collection. In: Vught F. van & Ziegele F. (Eds.), Multidimensional Ranking: The Design and Development of U-Multirank: Springer. 125-133.
Tijssen R.J.W. (2012), R&D globalization processes and university-industry research cooperation: measurement and indicators: Centre for Science and Technology Studies, Leiden University.
Seeber M., Lepori B., Agasisti T., Tijssen R.J.W., Montanari C. & Catalano G. (2012), Relational arenas in a regional higher education system: insights from an empirical analysis, Research Evaluation 21(4): 291-305.
Tijssen R.J.W., Waltman L. & Van Eck N.J.P. (2012), Research collaboration and the expanding science grid: Measuring globalization processes worldwide, Proceedings of the 17th International Conference on Science and Technology Indicators. 779-790.
Waltman L., Calero-Medina C.M., Kosten J., Noyons E.C.M., Tijssen R.J.W., Van Eck N.J., Van Leeuwen T.N., Van Raan A.F.J., Visser M.S. & Wouters P.F. (2012), The Leiden Ranking 2011/2012: Data collection, indicators, and interpretation, Proceedings of the 17th International Conference on Science and Technology Indicators. 791-802.
Waltman L.R., Calero Medina C.M., Kosten J., Noyons E.C.M., Tijssen R.J.W., Van Eck N.J.P., Leeuwen T.N. van, Raan A.F.J. van, Visser M.S. & Wouters P. (2012), The Leiden Ranking 2011/2012: Data collection, indicators, and interpretation: Centre for Science and Technology Studies, Leiden University.
Callaert J., Epping E., Federkeil G., File J., Jongbloed B., Kaiser F., Roessler I., Tijssen R.J.W., Vught F. van & Ziegele F. (2012), The pilot test and its outcomes. In: Vught F. van & Ziegele F. (Eds.), Multidimensional Ranking: The Design and Development of U-Multirank: Springer. 135-166.
Van Eck N.J.P., Waltman L. & Tijssen R.J.W. (2011), Globalization of science: Geographical distance measurements of research collaboration, Proceedings of the 13th International Conference of the International Society for Scientometrics and Informetrics. . PROCEEDINGS OF ISSI 2011: THE 13TH CONFERENCE OF THE INTERNATIONAL SOCIETY FOR SCIENTOMETRICS AND INFORMETRICS, VOLS 1 AND 2 181-186.
Winnink J.J. & Tijssen R.J.W. (2011), R&D dynamics in the development of HIV/AIDS drugs, Proceedings of the 13th International Conference of the International Society for Scientometrics and Informetrics. . PROCEEDINGS OF ISSI 2011: THE 13TH CONFERENCE OF THE INTERNATIONAL SOCIETY FOR SCIENTOMETRICS AND INFORMETRICS, VOLS 1 AND 2 855-860.
Tijssen R.J.W. (17 June 2011). Van wetenschap naar innovatie: Over wensdromen en kennisstromen. Leiden. [inaugural address].
Tijssen Robert J.W., Waltman Ludo & Van Eck Nees Jan (2011), Collaborations span 1,553 kilometres, 473(7346): 154-154.
Lepori B., Reale E. & Tijssen R.J.W. (2011), Designing indicators for policy decisions: challenges, tensions and good practices: introduction to a special issue, Research Evaluation 20(1): 3-5.
Waltman L.R., Tijssen R.J.W. & Van Eck N.J.P. (2011), Globalisation of science in kilometres, Journal of Informetrics 5(4): 574-582.
Waltman L.R., Tijssen R.J.W. & Van Eck N.J.P. (2011), Globalisation of science in kilometres: Centre for Science and Technology Studies, Leiden University.
Van Eck N.J.P., Tijssen R.J.W. & Waltman L. (2011), Globalization of public-private research in worldwide science: co-publication trends and geographical distances between research partners, Proceedings of the 2011 Atlanta Conference on Science and Innovation Policy. .
Nederhof Anton J., Tijssen R.J.W. & Moed H.F. (2010), Anthony van Raan and bibliometrics, Research Evaluation 19: 158-160.
Tijssen R.J.W. (2010), Discarding the 'basic science/applied science' dichotomy: A knowledge utilization triangle classification system of research journals, Journal of the American Society for Information Science and Technology 61: 1842-1852.
Tijssen R.J.W. (2010), Discarding the ‘basic science/applied science’ dichotomy: A Knowledge Utilization Triangle classification system of research journals. Leiden: SW Centrum Wetensch. & Techn. Studies (CWTS).
Hoekman J., Frenken K. & Tijssen R.J.W. (2010), Research collaboration at a distance: changing spatial patterns of scientific collaboration within Europe, 39: 662-673.
Tijssen R.J.W., Hollanders H., Kanerva M., Leeuwen T.N. van, Nederhof A.J. & Berg P. van den (2010), Wetenschaps- en Technologie-Indicatoren 2010. Den Haag: Ministerie van Onderwijs, Cultuur en Wetenschap.
Tijssen R.J.W., Nederhof Anton J., Van Leeuwen T.N., Hollanders H., Kanerva M. & Van den Berg P. (2010), Wetenschaps- en Technologie -Indicatoren 2010: Nederlands Observatorium van Wetenschap en Technologie (NOWT).
Tijssen R.J.W., Leeuwen T.N. van & Van Wijk E. (2009), Benchmarking university-industry research cooperation worldwide: performance measurements and indicators based on co-authorship data for the world's largest universities, Research Evaluation 18(1): 13-24.
Tijssen R.J.W. (2009), How globalized is corporate pharmaceutical research? An analysis of Europe’s multinational companies, Technology Analysis and Strategic Management 21(7): 859-879.
Tijssen R.J.W. (2009), Measuring the corporate web of science: research and partnership networks within the European pharmaceutical industry. In: , Networks of Innovation in Industries: Edward Elgar.
Tijssen R.J.W. (24 November 2008), Identifying international scientific excellence: Bibliometric analyses of top research groups in the Netherlands. UK Evaluation Forum workshop, Wellcome Trust. London. [lecture].
Tijssen R.J.W. (18 November 2008), Globalisation of scientific research within Europe’s biopharmaceutical companies. INIR ”Global Lab” Research Seminar. Leuven. [lecture].
Tijssen R.J.W. (14 November 2008), Measuring Philips research performance: CWTS bibliometric analyses of research publication output and citation impact. Presentation at Philips Research. Eindhoven. [lecture].
Tijssen R.J.W. (5 November 2008), Bibliometrics for public and private foundations: A toolbox for assessing research proposals and results of research projects. European Forum on Philantrophy and Research Funding. Brussel. [lecture].
Tijssen R.J.W. & Leeuwen T.N. van (18 September 2008), University-Indystry research cooperation within the world’s largest universities: international comparative indicators of intensity, proximity, and preferences. 10th Science & Technology Indicators Conference. Wenen. [lecture].
Tijssen R.J.W. (28 August 2008), Wetenschaps- en Technologie-Indicatoren 2008 en 2009. Voordracht Ministerie van Onderwijs, Cultuur en Wetenschappen. Den Haag. [lecture].
Tijssen R.J.W. (28 July 2008), Are we moving towards an integrated European Research Area?. 4th International Conference on Webometrics, Informetrics and Scientometrics & 9th COLLNET meeting. Berlijn. [lecture].
Tijssen R.J.W. (13 May 2008), Wetenschaps- en Technologie-Indicatoren 2008. Voordracht voor Stichting FOM. Utrecht. [lecture].
Tijssen R.J.W. (17 April 2008), What is Evaluation: Taking stock of the issues”; My Evaluation: How would I go about evaluation. Seminar “Evaluating Research Outcomes and Impacts, European Foundation Centre – European Forum on Philantrophy and Research Funding. Brussel, Belgie. [lecture].
Hoekman J., Frenken K. & Tijssen R.J.W. (15 April 2008), The geography of collaborative knowledge production in Europe. Annual Meeting of the Association of American Geographers (AAG 2008). Boston. [lecture].
Tijssen R.J.W. (2008), Are we moving towards an integrated European Research Area? Some macro-level bibliometric perspectives, COLLNET Journal of Scientometrics and Information Management 2(1): 19-25.
Jonkers K. & Tijssen R.J.W. (2008), Chinese researchers returning home: impacts of international mobility on research cooperation and scientific productivity, Scientometrics 77: 299-323.
Lambers Heerspink H.J., Knol M.J., Tijssen R.J.W., Leeuwen T.N. van, Grobbee D.E. & Zeeuw D. de (2008), Is the randomised controlled drug trial in Europe lagging behind the US?, British Journal of Clinical Pharmacology 66: 774-790.
Tijssen R.J.W., Hollanders H., Leeuwen T.N. van & Nederhof A.J. (2008), Wetenschaps- en technologie-indicatoren 2008. Den Haag: Ministerie van OC&W.
Tijssen R.J.W., Nederhof A.J. & Van Leeuwen T.N. (2008), Wetenschaps- en Technologie -Indicatoren 2008: Nederlands Observatorium van Wetenschap en Technologie (NOWT).
Tijssen Robert J.W. & Van Leeuwen Thed.N. (2007), Research cooperation within Europe: Bibliometric views of geographical trends and integration processes, Proceedings of the 11th Conference of the International Society of Scientometrics and Informetrics. . Proceedings of ISSI 2007: 11th International Conference of the International Society for Scientometrics and Informetrics, Vols I and II 740-744.
Van Leeuwen Thed N. & Tijssen Robert J.W. (2007), Strength and weakness of national science systems. A bibliometric analysis through cooperation patterns, Proceedings of the 11th Conference of the International Society for Scientometrics and Informetrics. . Proceedings of ISSI 2007: 11th International Conference of the International Society for Scientometrics and Informetrics, Vols I and II 469-479.
Tijssen R.J.W. (29 November 2007), Bibliometrische evaluatie van onderzoeksprestaties en wetenschappelijke impact,. Informatiebijeenkomst van Nederlandse Gezondheidsfondsen ‘Impact van Onderzoek’, Utrecht. Utrecht. [lecture].
Tijssen R.J.W. (26 November 2007), International rankings of SA science: bibliometric comparisons of SA research universities with the world’s top universities. Research Directors’ Forum, Wallenberg Centre/STIAS, Stellenbosch University. Stellenbosch, South Africa. [lecture].
Looy B. van, Hansen W., Hollanders H. & Tijssen R.J.W. (2 October 2007), Using concordance tables to disentagle performance dynamics of HT manufacturing industries: an empirical assessment of national innovation systems. EPO/OECD/DIME Conference on Patent Statistics for Policy Decision Making, Venetië, Italië. Venetie, Italie. [lecture].
Tijssen R.J.W. & Leeuwen T.N. van (25 June 2007), Research cooperation within Europe: bibliometric views of geographical trends and integration processes. 11th International Conference on Bibliometrics, Scientometrics and Informetrics, Madrid, Spanje. Madrid, Spain. [lecture].
Tijssen R.J.W. (18 May 2007), Impacts of global innovation systems on the European science base: empirical analysis of R&D within Europe’s pharmaceutical industry. workshop “The Political Economy of Research. Florence, Italy. [lecture].
Tijssen R.J.W. (2007), Africa's contribution to the worldwide research literature: new analytical perspectives, trends, and performance indicators, Scientometrics 71: 303-327.
Calero Medina C.M., Leeuwen T.N. van & Tijssen R.J.W. (2007), Research cooperation within the bio-pharmaceutical industry: Network analyses of co-publications within and between firms, Scientometrics 71(1): 87-99.
Tijssen R.J.W. & Leeuwen T.N. van (7 September 2006), Centres of research excellence and science indicators: can ‘Excellenec’ be captured in numbers ?. 9th International Conference on Science & Technology Indicators. Leuven. [lecture].
Tijssen R.J.W. (7 September 2006), Centres of research excellence and science indicators: towards top-down nation-wide measurements of institutional research excellence. 9th Science and Technology Indicators Conference. Leuven, Belgium. [lecture].
Tijssen R.J.W. (6 September 2006), Measuring international scientific impact of local research in developing countries: an African case study. ASC-CODESRIA Conference Bridging the North-South Divide in Scholarly Communication on Africa. Threats and Opportunities in the Digital era. Leiden. [lecture].
Tijssen R.J.W. (17 March 2006), International benchmarking of research performance in the field of clinical pharmacology: the case of ‘Randomized Controlled Trials’. NEFARMA workshop. The Hague. [lecture].
Tijssen R.J.W. (23 January 2006), Science journals and developing countries: Towards journal-based bibliometric indicators of research interactions between academia and industry. Africa PRIME Workshop. Lund, Sweden. [lecture].
Mouton J., Boshoff N. & Tijssen R.J.W. (2006), A comprehensive analysis of South African research journals. In: Gevers W. & et al. (Eds.), Report on strategic approach to research publishing. Pretoria: Academy of Science of South Africa. 29-59.
Tijssen R.J.W., Mouton J., Leeuwen T.N. van & Boshoff N. (2006), How relevant are local scholarly journals in global science? A case study of South Africa, Research Evaluation 15(3): 163-174.
Tijssen R.J.W. & Leeuwen T.N. van (2006), Measuring impacts of academic science on industrial research: A citation-based approach, Scientometrics 66: 55-69.
Tijssen R.J.W., Hollanders H., Leeuwen T.N. van & Nederhof A.J. (2006), Science and Technology Indicators 2005: Summary, Het Nederlands Observatorium van Wetenschap en Technologie: Centrum voor Wetenschaps- en Technologie-Studies (CWTS) en Maastricht Economic Research Institute on Innovation and Technology (MERIT). Den Haag: Deltahage.
Looy B. van, Debackere K., Callaert C., Tijssen R.J.W. & Leeuwen T.N. van (2006), Scientific capabilities and technological performance of national innovation systems: An exploration of emerging industrial relevant research domains, Scientometrics 66: 295-310.
Tijssen R.J.W. (2006), Universities and industrially relevant science: towards measurement models and indicators of entrepreneurial universities, 35: 1569-1585.
Calero C., Leeuwen T.N. van & Tijssen R.J.W. (2005), Research networks of pharmaceutical firms: Geographical patterns of research collaboration within and between firms, Proceedings of the 10th International Conference of the International Society for Scientometrics and Informetrics. . ISSI 2005: Proceedings of the 10th International Conference of the International Society for Scientometrics and Informetrics, Vols 1 and 2 310-315.
Tijssen R.J.W. (1 November 2005), The hidden treasures within basic science of developing countries: quantitative indicators of where and how corporate science is using research outputs from the less developed countries. Globelics Africa Conference. Pretoria, South Adrica. [lecture].
Tijssen R.J.W. (17 June 2005), University Entrepreneurial Potential, towards models and internationally comparative indicators. Conference "The Role of Universities in Innovation Systems". Florence, Italy. [lecture].
Tijssen R.J.W. (7 May 2005), International benchmarking and bibliometric monitoring of research performance in the social sciences. ESRC Seminar on Social Science Bibliometrics, Royal Society. London, UK. [lecture].
Tijssen R.J.W. (14 March 2005), Rankings of research universities: the good, the bad and the unfortunate. seminar "10 Years on the CREST". Stellenbosch, South Africa. [lecture].
Tijssen R.J.W. (2005), Commercialisation of corporate science and the production of research articles. In: Green K., Moizz M. & Dewick P. (Eds.), Technology, Knowledge and the firm: Implications for Strategy and Industrial Change. Cheltenham: Edward Elgar Publishing. 223-249.
Tijssen R.J.W., Hollanders H., Leeuwen T.N. van & Nederhof A.J. (2005), Wetenschaps- en technologie-indicatoren 2005. Den Haag: Deltahage.
Tijssen R.J.W., Hollanders H., Van Leeuwen T.N. & Nederhof Anton J. (2005), Wetenschaps- en Technologie-Indicatoren 2005: Nederlands Observatorium van Wetenschap en Technologie (NOWT).
Tijssen R.J.W. (12 October 2004), Meting van valorisatie-prestaties van Nederlandse universiteiten: utopie of haalbare kaart?. Advisory Council for Science and Technology Policy (AWT). Den Haag. [lecture].
Tijssen R.J.W. & Leeuwen T.N. van (23 September 2004), Measuring the impact of academic science on industrial research. 8th International Conference on Science and Technology Indicators. Leiden. [lecture].
Tijssen R.J.W. (2004), Is the commercialisation of scientific research affecting the production of public knowledge? Global trends in the output of corporate research articles, 33(5): 709-733.
Tijssen R.J.W. (2004), Measuring and evaluating science-technology interactions: towards international statistics. In: Moed H.F, Glanzel W. & Schmoch U. (Eds.), Handbook of Quantitative Science and Technology Research: The use of publication and patent statistics in studies on S&T Systems. Dordrecht: Kluwer Academic Publishers. 695-716.
Van Looy B.K., Debackere K., Callaert J., Tijssen R.J.W. & Van Leeuwen T.N. (2004), National scientific capabilities and technological performance: An exploration of emerging industrial relevant research domains, Proceedings of the 2004 S&T Indicators Conference, Leiden, The Netherlands. 178-188.
Tijssen R.J.W., Hollanders H., Leeuwen T.N. van & Nederhof A.J. (2004), Science and technology indicators 2003 summary. Den Haag: Deltahage.
Tijssen R.J.W., Van Leeuwen T.N., Luo Y.-L., Hung W.C., Tsai M.H., Chang L.D., Hsiao Y.P. & Chen H.L. (2003), Macro level bibliometric analysis of Taiwanese Science 1995-2001: Science and Technology Information Center, National Research Council of Taiwan.
Tijssen R.J.W. (2003), Scoreboards of research excellence, Research Evaluation 12(2): 91-104.
Tijssen R.J.W., Hollanders H., Leeuwen T.N. van & Nederhof A.J. (2003), Wetenschaps- en technologie-indicatoren 2003. Den Haag: Ministerie van Onderwijs en Wetenschap.
Tijssen R.J.W., Visser M.S. & Leeuwen T.N. van (2002), Benchmarking international scientific excellence: Are highly cited research papers an appropriate frame of reference?, Scientometrics 54(3): 381-397.
Tijssen R.J.W., Van Leeuwen T.N. & Van Raan A.F.J. (2002), Mapping the scientific performance of German medical research. An international comparative bibliometric study.
Tijssen R.J.W. (2002), Science dependence of technologies: Evidence from inventions and their inventors, 31(4): 509-526.
Tijssen R.J.W., Visser M.S. & Leeuwen T.N. van (2001), Searching for scientific excellence: Scientometric measurements and citation analyses of national research systems, Proceedings of the 8th Conference of the International Society for Scientometrics and Informetrics. . Proceedings of the 8th International Conference on Scientometrics and Informetrics, Vols 1 and 2 - ISSI 675-689.
Leeuwen T. N. van, Moed H.F., Tijssen R.J.W., Visser M.S. & Raan A.F.J. van (2001), Language biases in the coverage of the Science Citation Index and its consequences for international comparisons of national research performance, Scientometrics 51(1): 335-346.
Tijssen R.J.W. (2001), Global and domestic utilization of industrial relevant science: patent citation analysis of science-technology interactions and knowledge flows, 30: 35-54.
Hollanders H. & Tijssen R.J.W. (2001), Minder fundamenteel onderzoek, Economisch Statistische Berichten 86(4297): 212-214.
Tijssen R.J.W., Leeuwen T.N. van, Hollanders H. & Verspagen B. (2001), Wetenschaps- en technologie-indicatoren. Zoetermeer: Ministerie van Onderwijs, Cultuur en Wetenschappen.
Leeuwen T.N. van, Moed H.F., Tijssen R.J.W., Visser M.S. & Raan A.F.J. van (2000), First evidence of serious language-bias in the use of citation analysis for the evaluation of national science systems, Research Evaluation 9(2): 155-156.
Tijssen R.J.W., Buter R.K. & Leeuwen T.N. van (2000), Technological relevance of science: An assessment of citation linkages between patents and research papers, Scientometrics 47(2): 389-412.
Tijssen R.J.W. & Wijk E. van (2000), ICT-onderzoek onderzocht. Internationaal vergelijkende macro-studie van Nederlands ICT-onderzoek. Leiden: CWTS.
Leeuwen T.N. van & Tijssen R.J.W. (2000), Interdisciplinary dynamics of modern science: analysis of cross-disciplinary citation flows, Research Evaluation 9(3): 183-187.
Tijssen R.J.W. (2000), Nederlandse wetenschap als kennisbron voor industriele uitvindingen, Trendanalyse van verwijzingen in octrooien naar Nederlandse wetenschappelijke artikelen. Leiden: CWTS.
Tijssen R.J.W. & Leeuwen T.N. van (2000), Scientific co-operation between The Netherlands and Russia. Overview of Dutch-Russian scientific publication activity (1997-1998). Leiden: CWTS.
Tijssen R.J.W. (2000), Wetenschappelijk en technisch onderzoek als kennisbron voor uitvindingen en innovaties. Leiden: CWTS.
Raan A.F.J. van, Moed H.F. & Tijssen R.J.W. (1 September 1999), College: Cognitive and Structural Development of Scientific and Technological Knowledge (in Dutch). lectures national, CWTS-college. Leiden Univ, Leiden (The Netherlands). [lecture].
Tijssen R.J.W. (11 May 1999), Het belang van Nederlands wetenschappelijk onderzoek voor technologische innovaties: kwantitatieve analyse van octrooien. CWTS Seminars Leiden.Univ. Teaching activities. Leiden (The Netherlands). [lecture].
Tijssen R.J.W. (1999), NL onderzoek inspiratiebron Amerikaanse octrooien. Leiden: Exchange Affairs (digital per.) of NACE. [other].
Tijssen R.J.W. (1999), Onderzoek UT voorop bij industriële toepassingen. Leiden (The Netherlands): UTNieuws. [other].
Tijssen R.J.W. (1999), Octrooibeleid in de kinderschoenen. Leiden: Mare. [other].
Tijssen R.J.W., Luwel M.J.J. & Wijk E. van (1999), Flemish R&D in Information and Communication Technologies: output performance in an international perpective. Leiden: Centrum voor Wetenschaps en Technologie Studies (CWTS).
Tijssen R.J.W. & Van Wijk E. (1999), In search of the European Paradox: an international comparison of Europe's scientific performance and knowledge flows in information and communication technologies research, 28(5): 519-543.
Tijssen R.J.W. & Leeuwen T.N. van (1999), Scientific Co-operation between The Netherlands and Japan. Leiden: Centrum voor Wetenschaps en Technologie Studies (CWTS).
Tijssen R.J.W., Leeuwen T.N. van & Moed H.F. (1998), Schrijvende astronoom blijft lang goed. Leiden: De Volkskrant. [other].
Tijssen R.J.W. (28 October 1998), The importance of science for technology and the economy. Seminars CWTS, Leiden Univ. Teaching activities: lecture. Leiden. [lecture].
Raan A.F.J. van, Moed H.F. & Tijssen R.J.W. (1998), College: Cognitive and structural development of scientific and technological knowledge. Leiden: CWTS Leiden Univ. [other].
Tijssen R.J.W. (17 July 1998), Nederlands ICT-onderzoek staat hoog aangeschreven. Automatisering Gids: 21-21.
Moed H.F., Leeuwen T.N. van & Tijssen R.J.W. (1998), Minder in de bladen. Leiden: De Volkskrant. [other].
Tijssen R.J.W. & Wijk E. van (1998), Europe's contribution to the global ICT science base. Hinxton, Cambridge (England): SPRU, Hinxton, Cambridge / CWTS, University Leiden. [other].
Tijssen R.J.W. & Buter R.K. (1998), Het belang van Nederlands wetenschappelijk onderzoek voor technologische innovaties: kwantitatieve analyse van octrooien. Leiden: Centre for Science and Technology Studies (CWTS).
Tijssen R.J.W. (1998), Quantitative assissment of large heterogeneous R&D networks: the case of process engineering in the Netherlands, 26(7-8): 7-8.
Schwarz-Winkel A, Schwarz S & Tijssen R.J.W. (1998), Research and research impact of a technical university: a bibliometric study, Scientometrics 41(3): 371-388.
Tijssen R.J.W. & Van Wijk E. (1998), The global science base of information and communication technologies: bibliometric analysis of ICT research papers, Scientometrics 42(1): 41-60.
Tijssen R.J.W. & Wijk E. van (1998), The global science base of information and communication technologies. Strategic analyses of scientific publication activity. Leiden: Centre for Science and Technology Studies (CWTS).
Tijssen R.J.W., Leeuwen T.N. van, Verspagen B. & Hollanders H. (1998), Wetenschaps- en Technologie-Indicatoren 1998. Zoetermeer: Ministerie van Onderwijs, Cultuur en Wetenschappen.
Tijssen R.J.W. & Wijk E. van (3 October 1997), The global science base of Information and Communication Technologies: bibliometric macro-level analysis R&D activities in the Triad. Meeting European Commission/TSER. Paris, France. [lecture].
Tijssen R.J.W. & Raan A.F.J. van (26 September 1997), Wetenschappelijk rendement voor onderzoekinstellingen. Symposium Effectiviteit in EU-onderzoek, St. Science Alliance. The Hague. [lecture].
Tijssen R.J.W. & Wijk E. van (13 June 1997), The global science base of Information and Communication Technologies: bibliometric indicators of R&D activities. Meeting European Commission/TSER. Brussels, Belgium. [lecture].
Tijssen R.J.W. (14 March 1997), Evaluatie van R&D-netwerken. Seminars CWTS (staff & visitors), Leiden Univ.. Leiden. [lecture].
Tijssen R.J.W. & Korevaar J.C. (1997), Actoren in de wisselwerking tussen wetenschap en technologie: samenwerking en kennisinteractie in de Nederlandse procestechnologie. Leiden: Centre for Science and Technology Studies (CWTS).
Tijssen R.J.W. & Wijk E. van (1997), International comparison of ICT research bases: a quantitative study of scientific publication output in the Netherlands, France, Germany, Sweden, Switzerland and the United Kingdom. Leiden: Centre for Science and Technology Studies (CWTS).
Tijssen R.J.W., Verspagen B., Slabbers M., Essen M. van & Leeuwen T.N. van (1997), Nederlands milieu-onderzoek kwantitatief in kaart gebracht: een verkennende studie. Leiden / Maastricht: Centre for Science and Technology Studies (CWTS) / MERIT.
Tijssen R.J.W. & Leeuwen T.N. van (1997), Scientific co-operation between The Netherlands and Hungary. An overview of Dutch-Hungarian co-authored scientific publication activity. Leiden: Centre for Science and Technology Studies / NOWT.
Tijssen R.J.W. & Leeuwen T.N. van (1997), Scientific co-operation between the Netherlands and Russia. An overview of Dutch-Russian co-authored scientific publication activity. Leiden: Centre for Science and Technology Studies (CWTS) / NOWT.
Tijssen R.J.W. & Korevaar J.C. (1997), Unravelling the cognitive and interorganisational structure of public/private R&D networks: a case study of catalysis research in the Netherlands, 25(8): 1277-1293.
Tijssen R.J.W., Leeuwen T.N. van & Korevaar J.C. (1996), Scientific publication activity of industry in the Netherlands, Research Evaluation 6(2): 105-119.
Tijssen R.J.W. & Leeuwen T.N. van (1995), On generalising scientometric journal mapping beyond ISI's journal and citation databases, Scientometrics 33(1): 93-116.
Tijssen R.J.W. & Raan A.F.J. van (1994), Mapping changes in science and technology: bibliometric co-occurrence analysis of the R&D literature, Evaluation Review 18(1): 98-115.
Van Leeuwen T.N. & Tijssen R.J.W. (1993), Assessing Multidisciplinary Area's of Science and Technology - A synthetic Bibliometric Study of Dutch Nuclear-Energy Research, Scientometrics 26(1): 115-133.
Tijssen R.J.W. (1993), A scientometric cognitive study of neural network research: expert mental maps versus bibliometric maps, Scientometrics 28(1): 111-136.
Luukkonen T., Tijssen R.J.W., Persson O. & Sivertsen G. (1993), The measurement of international scientific collaboration, Scientometrics 28(1): 15-36.
Raan A.F.J. van & Tijssen R.J.W. (1993), The neural net of neural network research: an exercise in bibliometric mapping, Scientometrics 26(1): 169-192.
Tijssen R.J.W. (1992), A quantitative assessment of interdisciplinary structures in science and technology: co-classification analysis of energy research, 21(1): 27-44.
Moed H., De Bruin R.E., Nederhof A.J. & Tijssen R.J.W. (1991), International scientific co-operation and awareness within the European Community: problems and perspectives, Scientometrics 21(3): 291-311.
Tijssen R.J.W., Raan A.F.J. van, Heiser W.J. & Wachmann L. (1990), Integrating multiple sources of information in literature-based maps of science, Journal of Information Science 16(4): 217-227.
Tijssen R.J.W. & Raan A.F.J. van (1990), Net Citation Balances: a measure of influence between scientific journals, Journal of the American Society for Information Science 41(4): 298-305.
Raan A.F.J. van & Tijssen R.J.W. (1990), Numerical methods for information on aspects of science. In: Oppenheim C., Griffiths J. & Citroen C. (Eds.), Perspectives in Information Management no. 2. London: Bowker-Saur/Butterworth-Heinemann. 203-228.
Tijssen R.J.W. & Raan A.F.J. van (1989), Mapping co-word structures: a comparison of multidimensional scaling and LEXIMAPPE, Scientometrics 15(3-4): 283-295.
Tijssen R.J.W. & De Leeuw J. (1989), Multi-set nonlinear canonical correlation analysis via the Burt matrix. In: Coppi R. & Bolasco S. (Eds.), Multiway Data Analysis. Amsterdam: North-Holland. 257-267.
Tijssen R.J.W. & De Leeuw J. (1988), Multivariate data-analysis methods in bibliometric studies of science and technology. In: Raan A.F.J. van (Ed.), Handbook of Quantitative Studies of Science and Technology. Amsterdam: Elsevier Science Publishers. 705-740.
Tijssen R.J.W., Leeuw J. de & Raan A.F.J. van (1987), Quasi-correspondence analysis on square transaction matrices, Scientometrics 11(5-6): 347-361.

Aanstelling als (bijzonder) hoogleraar aan Universiteit Stellenbosch (Zuid-Afrika) Onderzoek (95%) and onderwijs (5%)