Open Access uptake by universities worldwide
Robinson-Garcia, Nicolas, Costas, Rodrigo, van Leeuwen, Thed N
Published in PeerJ (San Francisco, CA) (08.07.2020)
Published in PeerJ (San Francisco, CA) (08.07.2020)
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Journal Article
The effect of booming countries on changes in the relative specialization index (RSI) on country level
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Journal Article
Conference Proceeding
Assessing publication rates from medical students’ mandatory research projects in the Netherlands: a follow-up study of 10 cohorts of medical students
den Bakker, Charlotte R, Ommering, Belinda WC, van Leeuwen, Thed N, Dekker, Friedo W, De Beaufort, Arnout Jan
Published in BMJ open (04.04.2022)
Published in BMJ open (04.04.2022)
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Journal Article
UK Doubles Its "World-Leading" Research in Life Sciences and Medicine in Six Years: Testing the Claim?
Wooding, Steven, Van Leeuwen, Thed N, Parks, Sarah, Kapur, Shitij, Grant, Jonathan
Published in PloS one (23.07.2015)
Published in PloS one (23.07.2015)
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Journal Article
The Leiden ranking 2011/2012: Data collection, indicators, and interpretation
Waltman, Ludo, Calero-Medina, Clara, Kosten, Joost, Noyons, Ed C.M., Tijssen, Robert J.W., van Eck, Nees Jan, van Leeuwen, Thed N., van Raan, Anthony F.J., Visser, Martijn S., Wouters, Paul
Published in Journal of the American Society for Information Science and Technology (01.12.2012)
Published in Journal of the American Society for Information Science and Technology (01.12.2012)
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Journal Article
Using altmetrics for contextualised mapping of societal impact: From hits to networks
Robinson-Garcia, Nicolas, van Leeuwen, Thed N, Ràfols, Ismael
Published in Science & public policy (01.12.2018)
Published in Science & public policy (01.12.2018)
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Journal Article
Benchmarking university-industry research cooperation worldwide: performance measurements and indicators based on co-authorship data for the world's largest universities
Tijssen, Robert J W, van Leeuwen, Thed N, van Wijk, Erik
Published in Research evaluation (01.03.2009)
Published in Research evaluation (01.03.2009)
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Journal Article
In vitro studies of osteosarcoma: A researcher's perspective of quantity and quality
Peterse, Elisabeth F.P, van Leeuwen, Thed N, Cleton-Jansen, Anne-Marie
Published in Journal of bone oncology (01.06.2017)
Published in Journal of bone oncology (01.06.2017)
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Journal Article
A bibliometric classificatory approach for the study and assessment of research performance at the individual level: The effects of age on productivity and impact
Costas, Rodrigo, van Leeuwen, Thed N., Bordons, María
Published in Journal of the American Society for Information Science and Technology (01.08.2010)
Published in Journal of the American Society for Information Science and Technology (01.08.2010)
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Journal Article
Language biases in the coverage of the Science Citation Index and its consequences for international comparisons of national research performance
VAN LEEUWEN, Thed N, MOED, Henk F, TUSSEN, Robert J. W, VISSER, Martun S, VAN RAAN, Anthony F. J
Published in Scientometrics (01.05.2001)
Published in Scientometrics (01.05.2001)
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Conference Proceeding
Journal Article
Benchmarking international scientific excellence: Are highly cited research papers an appropriate frame of reference?
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Conference Proceeding
Journal Article
Some modifications to the SNIP journal impact indicator
Waltman, Ludo, van Eck, Nees Jan, van Leeuwen, Thed N., Visser, Martijn S.
Published in Journal of informetrics (01.04.2013)
Published in Journal of informetrics (01.04.2013)
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Journal Article