Content Provider
Cambridge University Press
8,069
Informa (via Crossref)
2,628
ScienceDirect (Elsevier - via Crossref)
1,556
ScienceDirect (Elsevier)
1,235
Springer Nature (via Crossref)
1,142
Canadian Science Publishing (via Crossref)
1,088
Canadian Science Publishing
274
Informa
241
JSTOR (via Crossref)
213
Frontiers (Publisher)
193
IEEE Publications (via Crossref)
96
Brill (via Crossref)
94
Cambridge University Press (via Crossref)
90
The BMJ
80
Wiley Online Library (via Crossref)
64
University of Chicago Press (via Crossref)
49
JSTOR
47
SAGE Publications (via Crossref)
47
De Gruyter (via Crossref)
46
IEEE Publications
43
Istituto Nazionale di Fisica Nucleare (INFN): Open Access Repository
43
University of Zurich (UZH): ZORA (Zurich Open Repository and Archive
31
Oxford University Press (via Crossref)
30
University of Liège: ORBi (Open Repository and Bibliography)
26
Sciendo (de Gruyter - via CrossRef)
20
Caltech Authors (California Institute of Technology)
18
DIAL@UCLouvain (Université catholique de Louvain)
17
DIAL@USL-B (Université Saint-Louis, Bruxelles)
17
Johns Hopkins University Press
16
SAGE Publications
15
Johns Hopkins University Press (via Crossref)
14
Wiley Online Library
14
Aberdeen University Research Archive (AURA)
11
Scientific Research Publishing (SCIRP Open Access - via Crossref)
10
The University of Queensland: UQ eSpace
10
Scandinavian University Press (via Crossref)
9
The BMJ (via Crossref)
9
Utrecht University Repository
8
Ghent University Academic Bibliography
7
ACS Publications (via Crossref)
6
Longwoods Publishing (via Crossref)
6
Université de Lausanne (UNIL): Serval - Serveur académique lausannois
6
De Gruyter
5
NIST Publications (National Institute of Standards and Technology - via Crossref)
4
Oxford University Press
4
Schweizerbart Science Publishers (via Crossref)
4
Mark Allen (via Crossref)
3
Ovid (via Crossref)
3
University of Nottingham: Repository@Nottingham
3
Zenodo
3
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