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ORCIDThed N. van Leeuwen
Theodorus van Leeuwen
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- affiliation: Leiden University, Centre for Science and Technology Studies (CWTS)
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2020 – today
- 2023
[j54]Verena Weimer
, Tamara Heck, Thed N. van Leeuwen, Marc Rittberger:
The quantification of open scholarship - a mapping review. Quant. Sci. Stud. 4(3): 650-670 (2023)- [j53]Giovanni Abramo, Isidro F. Aguillo, Dag W. Aksnes, Kevin W. Boyack, Quentin L. Burrell, Juan Miguel Campanario, Zaida Chinchilla-Rodríguez, Rodrigo Costas, Ciriaco Andrea D'Angelo, Anne-Wil Harzing, Hamid R. Jamali, Vincent Larivière, Loet Leydesdorff, Marc Luwel, Ben Martin, Philipp Mayr, Katherine W. McCain, Isabella Peters, Ismael Ràfols, Nicolás Robinson-García, Torben Schubert, Henry Small, Cassidy R. Sugimoto, Mike Thelwall, Peter van den Besselaar, Thed N. van Leeuwen, Ludo Waltman:
Retraction of Predatory publishing in Scopus: evidence on cross-country differences lacks justification. Scientometrics 128(2): 1459-1461 (2023) - 2021
- [j52]Andrea Sixto-Costoya, Nicolás Robinson-García, Thed N. van Leeuwen, Rodrigo Costas:
Exploring the relevance of ORCID as a source of study of data sharing activities at the individual-level: a methodological discussion. Scientometrics 126(8): 7149-7165 (2021) - [i18]Andrea Sixto-Costoya, Nicolás Robinson-García, Thed N. van Leeuwen, Rodrigo Costas:
Exploring the relevance of ORCID as a source of study of data sharing activities at the individual-level: a methodological discussion. CoRR abs/2105.11825 (2021) - [i17]Gemma E. Derrick, Pei-Ying Chen, Thed N. van Leeuwen, Vincent Larivière, Cassidy R. Sugimoto:
The academic motherload: Models of parenting engagement and the effect on academic productivity and performance. CoRR abs/2108.05376 (2021) - 2020
- [j51]Maarten P. Rozing, Thed N. van Leeuwen, P. H. Reitsma, F. R. Rosendaal, N. A. Aziz:
Freeloading in biomedical research. Scientometrics 122(1): 47-55 (2020) - [i16]Nicolás Robinson-García, Rodrigo Costas, Thed N. van Leeuwen:
State of Open Access penetration in universities worldwide. CoRR abs/2003.12273 (2020)
2010 – 2019
- 2019
- [j50]Giovanni Colavizza, Thomas Franssen, Thed N. van Leeuwen:
An empirical investigation of the tribes and their territories: Are research specialisms rural and urban? J. Informetrics 13(1): 105-117 (2019) - [j49]Jesper W. Schneider, Thed N. van Leeuwen, Martijn S. Visser, Kaare Aagaard:
Examining national citation impact by comparing developments in a fixed and a dynamic journal set. Scientometrics 119(2): 973-985 (2019) - [c7]Nicolás Robinson-García, Rodrigo Costas, Thed N. van Leeuwen:
Indicators of Open Access for universities. ISSI 2019: 1415-1423 - [c6]Thed N. van Leeuwen, Jesper W. Schneider:
Research performance measurement of universities in the R-Quest countries under various OA mandates. ISSI 2019: 1560-1569 - [c5]Gemma E. Derrick, Adam Jaeger, Pei-Ying Chen, Cassidy R. Sugimoto, Thed N. van Leeuwen, Vincent Larivière:
Models of parenting and its effect on academic productivity: Preliminary results from an international survey. ISSI 2019: 1670-1676 - [c4]Marc Luwel, Thed N. van Leeuwen:
Has the 2008 Global Financial Crisis a lasting impact on universities and public research institutes in the European Union? ISSI 2019: 1722-1733 - [c3]Nicolás Robinson-García, Rodrigo Costas, Thed N. van Leeuwen, Tina Nane:
Towards a multidimensional valuation model of scientists. ISSI 2019: 2565-2566 - [i15]Nicolás Robinson-García, Rodrigo Costas, Thed N. van Leeuwen:
Indicators of Open Access for universities. CoRR abs/1906.03840 (2019) - 2018
- [j48]Thed N. van Leeuwen, Clifford Tatum, Paul F. Wouters:
Exploring possibilities to use bibliometric data to monitor gold open access publishing at the national level. J. Assoc. Inf. Sci. Technol. 69(9): 1161-1173 (2018) - [j47]Alberto Martín-Martín, Rodrigo Costas, Thed N. van Leeuwen, Emilio Delgado López-Cózar:
Evidence of open access of scientific publications in Google Scholar: A large-scale analysis. J. Informetrics 12(3): 819-841 (2018) - [j46]Thed N. van Leeuwen:
Measuring Research: What Everyone Needs to Know, Cassidy R. Sugimoto, Vincent Larivière, Oxford University Press (2018). J. Informetrics 12(4): 1232-1234 (2018) - [i14]Thed N. van Leeuwen, Ingeborg Meijer, Alfredo Yegros-Yegros, Rodrigo Costas:
Developing indicators on Open Access by combining evidence from diverse data sources. CoRR abs/1802.02827 (2018) - [i13]Alex Rushforth, Alfredo Yegros-Yegros, Philippe Mongeon, Thed N. van Leeuwen:
How does undone science get funded? A bibliometric analysis linking rare diseases publications to national and European funding sources. CoRR abs/1802.05945 (2018) - [i12]Alberto Martín-Martín, Rodrigo Costas, Thed N. van Leeuwen, Emilio Delgado López-Cózar:
Evidence of Open Access of scientific publications in Google Scholar: a large-scale analysis. CoRR abs/1803.06161 (2018) - [i11]Alberto Martín-Martín, Rodrigo Costas, Thed N. van Leeuwen, Emilio Delgado López-Cózar:
Unbundling Open Access dimensions: a conceptual discussion to reduce terminology inconsistencies. CoRR abs/1806.05029 (2018) - [i10]Giovanni Colavizza, Thomas Franssen, Thed N. van Leeuwen:
An empirical investigation of the Tribes and their Territories: are research specialisms rural and urban? CoRR abs/1806.09899 (2018) - 2017
- [j45]Thed N. van Leeuwen, Paul F. Wouters:
Analysis of Publications on Journal Impact Factor Over Time. Frontiers Res. Metrics Anal. 2: 4 (2017) - 2016
- [j44]Thed N. van Leeuwen, Erik Van Wijk, Paul F. Wouters:
Bibliometric analysis of output and impact based on CRIS data: a case study on the registered output of a Dutch university. Scientometrics 106(1): 1-16 (2016) - [i9]Nicolás Robinson-García, Thed N. van Leeuwen, Ismael Ràfols:
SSH & the City. A Network Approach for Tracing the Societal Contribution of the Social Sciences and Humanities for Local Development. CoRR abs/1606.00153 (2016) - 2015
- [c2]Adrián A. Díaz-Faes, María Bordons, Thed N. van Leeuwen, Ma Purificación Galindo:
Outlining the Scientific Activity Profile of Researchers in the Social Sciences and Humanities in Spain: The Case of CSIC. ISSI 2015 - [c1]Thed N. van Leeuwen, Clifford Tatum, Paul Wouters:
Open Access Publishing and Citation Impact - An International Study. ISSI 2015 - 2014
- [j43]Dag W. Aksnes, Thed N. van Leeuwen, Gunnar Sivertsen:
The effect of booming countries on changes in the relative specialization index (RSI) on country level. Scientometrics 101(2): 1391-1401 (2014) - 2013
- [j42]Ludo Waltman, Nees Jan van Eck, Thed N. van Leeuwen, Martijn S. Visser:
Some modifications to the SNIP journal impact indicator. J. Informetrics 7(2): 272-285 (2013) - [j41]Thed N. van Leeuwen, Leo Kriegsman, Jan van Tol, Joost Schokkenbroek:
The changing role of museums in the global scientific landscape. J. Sci. Res. 2(2): 137-145 (2013) - [j40]Thed N. van Leeuwen, Rodrigo Costas, Clara Calero-Medina, Martijn S. Visser:
The role of editorial material in bibliometric research performance assessments. Scientometrics 95(2): 817-828 (2013) - 2012
- [j39]Clara Calero-Medina, Thed N. van Leeuwen:
Seed journal citation network maps: A method based on network theory. J. Assoc. Inf. Sci. Technol. 63(6): 1226-1234 (2012) - [j38]Rodrigo Costas, Thed N. van Leeuwen:
Approaching the "reward triangle": General analysis of the presence of funding acknowledgments and "peer interactive communication" in scientific publications. J. Assoc. Inf. Sci. Technol. 63(8): 1647-1661 (2012) - [j37]Ludo Waltman, Clara Calero-Medina, Joost Kosten, Ed C. M. Noyons, Robert J. W. Tijssen, Nees Jan van Eck, Thed N. van Leeuwen, Anthony F. J. van Raan, Martijn S. Visser, Paul Wouters:
The Leiden ranking 2011/2012: Data collection, indicators, and interpretation. J. Assoc. Inf. Sci. Technol. 63(12): 2419-2432 (2012) - [j36]Rodrigo Costas, Thed N. van Leeuwen, María Bordons:
Referencing patterns of individual researchers: Do top scientists rely on more extensive information sources? J. Assoc. Inf. Sci. Technol. 63(12): 2433-2450 (2012) - [j35]Thed N. van Leeuwen:
Discussing some basic critique on Journal Impact Factors: revision of earlier comments. Scientometrics 92(2): 443-455 (2012) - [i8]Ludo Waltman, Clara Calero-Medina, Joost Kosten, Ed C. M. Noyons, Robert J. W. Tijssen, Nees Jan van Eck, Thed N. van Leeuwen, Anthony F. J. van Raan, Martijn S. Visser, Paul Wouters:
The Leiden Ranking 2011/2012: Data collection, indicators, and interpretation. CoRR abs/1202.3941 (2012) - [i7]Ludo Waltman, Nees Jan van Eck, Thed N. van Leeuwen, Martijn S. Visser:
Some modifications to the SNIP journal impact indicator. CoRR abs/1209.0785 (2012) - 2011
- [j34]Alesia A. Zuccala, Thed N. van Leeuwen:
Book reviews in humanities research evaluations. J. Assoc. Inf. Sci. Technol. 62(10): 1979-1991 (2011) - [j33]Ludo Waltman, Nees Jan van Eck, Thed N. van Leeuwen, Martijn S. Visser, Anthony F. J. van Raan:
Towards a new crown indicator: Some theoretical considerations. J. Informetrics 5(1): 37-47 (2011) - [j32]Ludo Waltman, Nees Jan van Eck, Thed N. van Leeuwen, Martijn S. Visser, Anthony F. J. van Raan:
Towards a new crown indicator: an empirical analysis. Scientometrics 87(3): 467-481 (2011) - [j31]Anthony F. J. van Raan, Thed N. van Leeuwen, Martijn S. Visser:
Severe language effect in university rankings: particularly Germany and France are wronged in citation-based rankings. Scientometrics 88(2): 495-498 (2011) - [j30]Ludo Waltman, Nees Jan van Eck, Thed N. van Leeuwen, Martijn S. Visser, Anthony F. J. van Raan:
On the correlation between bibliometric indicators and peer review: reply to Opthof and Leydesdorff. Scientometrics 88(3): 1017-1022 (2011) - [j29]Rodrigo Costas, Thed N. van Leeuwen, Anthony F. J. van Raan:
The "Mendel syndrome" in science: durability of scientific literature and its effects on bibliometric analysis of individual scientists. Scientometrics 89(1): 177-205 (2011) - [i6]Ludo Waltman, Nees Jan van Eck, Thed N. van Leeuwen, Martijn S. Visser, Anthony F. J. van Raan:
On the correlation between bibliometric indicators and peer review: Reply to Opthof and Leydesdorff. CoRR abs/1105.5316 (2011) - 2010
- [j28]Rodrigo Costas, Thed N. van Leeuwen, Anthony F. J. van Raan:
Is scientific literature subject to a 'Sell-By-Date'? A general methodology to analyze the 'durability' of scientific documents. J. Assoc. Inf. Sci. Technol. 61(2): 329-339 (2010) - [j27]Rodrigo Costas, Thed N. van Leeuwen, María Bordons:
A bibliometric classificatory approach for the study and assessment of research performance at the individual level: The effects of age on productivity and impact. J. Assoc. Inf. Sci. Technol. 61(8): 1564-1581 (2010) - [j26]Anthony F. J. van Raan, Thed N. van Leeuwen, Martijn S. Visser, Nees Jan van Eck, Ludo Waltman:
Rivals for the crown: Reply to Opthof and Leydesdorff. J. Informetrics 4(3): 431-435 (2010) - [j25]Rodrigo Costas, Thed N. van Leeuwen, María Bordons:
Self-citations at the meso and individual levels: effects of different calculation methods. Scientometrics 82(3): 517-537 (2010) - [j24]Anton J. Nederhof, Thed N. van Leeuwen, Anthony F. J. van Raan:
Highly cited non-journal publications in political science, economics and psychology: a first exploration. Scientometrics 83(2): 363-374 (2010) - [i5]Anthony F. J. van Raan, Thed N. van Leeuwen, Martijn S. Visser, Nees Jan van Eck, Ludo Waltman:
Rivals for the crown: Reply to Opthof and Leydesdorff. CoRR abs/1003.2113 (2010) - [i4]Ludo Waltman, Nees Jan van Eck, Thed N. van Leeuwen, Martijn S. Visser, Anthony F. J. van Raan:
Towards a new crown indicator: Some theoretical considerations. CoRR abs/1003.2167 (2010) - [i3]Ludo Waltman, Nees Jan van Eck, Thed N. van Leeuwen, Martijn S. Visser, Anthony F. J. van Raan:
Towards a new crown indicator: An empirical analysis. CoRR abs/1004.1632 (2010) - [i2]Anthony F. J. van Raan, Thed N. van Leeuwen, Martijn S. Visser:
Severe Language Effect in University Rankings: Particularly Germany and France are wronged in citation-based rankings. CoRR abs/1012.5199 (2010)
2000 – 2009
- 2009
- [j23]Rodrigo Costas, María Bordons, Thed N. van Leeuwen, Anthony F. J. van Raan:
Scaling rules in the science system: Influence of field-specific citation characteristics on the impact of individual researchers. J. Assoc. Inf. Sci. Technol. 60(4): 740-753 (2009) - [j22]Thed N. van Leeuwen:
Strength and weakness of national science systems: A bibliometric analysis through cooperation patterns. Scientometrics 79(2): 389-408 (2009) - [i1]Rodrigo Costas, Thed N. van Leeuwen, Anthony F. J. van Raan:
Is scientific literature subject to a sell-by-date? A general methodology to analyze the durability of scientific documents. CoRR abs/0907.1455 (2009) - 2007
- [j21]Clara Calero, Thed N. van Leeuwen, Robert J. W. Tijssen:
Research cooperation within the bio-pharmaceutical industry: Network analyses of co-publications within and between firms. Scientometrics 71(1): 87-99 (2007) - 2006
- [j20]Robert J. W. Tijssen, Thed N. van Leeuwen:
Measuring impacts of academic science on industrial research: A citation-based approach. Scientometrics 66(1): 55-69 (2006) - [j19]Thed N. van Leeuwen:
The application of bibliometric analyses in the evaluation of social science research. Who benefits from it, and why it is still feasible. Scientometrics 66(1): 133-154 (2006) - [j18]Bart Van Looy, Koenraad Debackere, Julie Callaert, Robert J. W. Tijssen, Thed N. van Leeuwen:
Scientific capabilities and technological performance of national innovation systems: An exploration of emerging industrial relevant research domains. Scientometrics 66(2): 295-310 (2006) - 2005
- [j17]Thed N. van Leeuwen, Henk F. Moed:
Characteristics of journal impact factors: The effects of uncitedness and citation distribution on the understanding of journal impact factors. Scientometrics 63(2): 357-371 (2005) - 2003
- [j16]Thed N. van Leeuwen, Martijn S. Visser, Henk F. Moed, Anton J. Nederhof, Anthony F. J. van Raan:
The Holy Grail of science policy: Exploring and combining bibliometric tools in search of scientific excellence. Scientometrics 57(2): 257-280 (2003) - 2002
- [j15]Ed J. Rinia, Thed N. van Leeuwen, Anthony F. J. van Raan:
Impact measures of interdisciplinary research in physics. Scientometrics 53(2): 241-248 (2002) - [j14]Thed N. van Leeuwen, Henk F. Moed:
Development and application of journal impact measures in the Dutch science system. Scientometrics 53(2): 249-266 (2002) - [j13]Ed J. Rinia, Thed N. van Leeuwen, Eppo E. W. Bruins, Hendrik G. van Vuren, Anthony F. J. van Raan:
Measuring knowledge transfer between fields of science. Scientometrics 54(3): 347-362 (2002) - [j12]Robert J. W. Tijssen, Martijn S. Visser, Thed N. van Leeuwen:
Benchmarking international scientific excellence: Are highly cited research papers an appropriate frame of reference? Scientometrics 54(3): 381-397 (2002) - 2001
- [j11]Ed J. Rinia, Thed N. van Leeuwen, Eppo E. W. Bruins, Hendrik G. van Vuren, Anthony F. J. van Raan:
Citation delay in interdisciplinary knowledge exchange. Scientometrics 51(1): 293-309 (2001) - [j10]Thed N. van Leeuwen, Henk F. Moed, Robert J. W. Tijssen, Martijn S. Visser, Anthony F. J. van Raan:
Language biases in the coverage of the Science Citation Index and its consequencesfor international comparisons of national research performance. Scientometrics 51(1): 335-346 (2001) - 2000
- [j9]R. J. W. Tussen, R. K. Buter, Thed N. van Leeuwen:
Technological Relevance of Science: An Assessment of Citation Linkages between Patents and Research Papers. Scientometrics 47(2): 389-412 (2000)
1990 – 1999
- 1999
- [j8]Thed N. van Leeuwen, Henk F. Moed, Jan Reedijk:
Critical comments on Institute for Scientific Information impact factors: a sample of inorganic molecular chemistry journals. J. Inf. Sci. 25(6): 489-498 (1999) - [j7]Henk F. Moed, Thed N. van Leeuwen, Jan Reedijk:
Towards appropriate indicators of journal impact. Scientometrics 46(3): 575-589 (1999) - 1998
- [j6]Henk F. Moed, Thed N. van Leeuwen, Jan Reedijk:
A new classification system to describe the ageing of scientific journals and their impact factors. J. Documentation 54(4): 387-419 (1998) - 1996
- [j5]Henk F. Moed, Thed N. van Leeuwen, Jan Reedijk:
A critical analysis of the journal impact factors ofAngewandte Chemie and the journal of the American Chemical Society inaccuracies in published impact factors based on overall citations only. Scientometrics 37(1): 105-116 (1996) - 1995
- [j4]Henk F. Moed, Thed N. van Leeuwen:
Improving the Accuracy of Institute for Scientific Informations's Journal Impact Factors. J. Am. Soc. Inf. Sci. 46(6): 461-467 (1995) - [j3]Robert J. W. Tijssen, Thed N. van Leeuwen:
On generalising scientometric journal mapping beyond ISI's journal and citation databases. Scientometrics 33(1): 93-116 (1995) - [j2]Henk F. Moed, Renger E. de Bruin, Thed N. van Leeuwen:
New bibliometric tools for the assessment of national research performance: Database description, overview of indicators and first applications. Scientometrics 33(3): 381-422 (1995) - 1993
- [j1]Thed N. van Leeuwen, Robert J. W. Tijssen:
Assessing multidisciplinary areas of science and technology: A synthetic bibliometric study of Dutch nuclear energy research. Scientometrics 26(1): 115-133 (1993)
Coauthor Index
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