Content Provider
Wiley Online Library (via Crossref)
1,902
Oxford University Press (via Crossref)
1,850
Canadian Science Publishing (via Crossref)
1,746
Wiley Online Library
1,152
Springer Nature (via Crossref)
963
Canadian Science Publishing
767
ScienceDirect (Elsevier - via Crossref)
695
Oxford University Press
577
Informa (via Crossref)
542
Cambridge University Press
528
ScienceDirect (Elsevier)
511
JSTOR (via Crossref)
402
Brill (via Crossref)
284
De Gruyter (via Crossref)
227
Informa
127
University of Chicago Press (via Crossref)
113
JSTOR
90
Brill
68
University of Chicago Press
65
Sciendo (de Gruyter - via CrossRef)
51
De Gruyter
40
Cambridge University Press (via Crossref)
37
The University of Queensland: UQ eSpace
24
SAGE Publications (via Crossref)
23
Istituto Nazionale di Fisica Nucleare (INFN): Open Access Repository
20
SAGE Publications
14
University of Zurich (UZH): ZORA (Zurich Open Repository and Archive
14
Frontiers (Publisher)
13
Queen's University Belfast Research Portal
12
University of St Andrews: Digital Research Repository
9
Aberdeen University Research Archive (AURA)
5
Unknown
5
Bentham Science Publishers (via Crossref)
4
Ghent University Academic Bibliography
4
Schweizerbart Science Publishers (via Crossref)
4
IRIS Università degli Studi di Bologna (CRIS - Current Research Information System)
3
IRIS Università degli Studi di Napoli Federico II
3
Mary Ann Liebert, Inc., publishers (via Crossref)
3
Opin vísindi (Iceland)
3
Sapienza Università di Roma: CINECA IRIS
3
Utrecht University Repository
3
ARPI - Archivio della Ricerca dell'Università di Pisa
2
IRIS UNIPV (Università degli studi di Pavia)
2
IRInSubria - Institutional Repository Insubria (Università degli Studi dell’Insubria)
2
OpenMETU (Middle East Technical University)
2
Padua Research Archive (IRIS - Università degli Studi di Padova)
2
Repositório da Universidade Nova de Lisboa (UNL)
2
Technical University of Denmark: DTU Orbit
2
The University of Milan: Archivio Istituzionale della Ricerca (AIR)
2
University of Stirling: Stirling Digital Research Repository
2
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