Content Provider
Cambridge University Press
8,069
ScienceDirect (Elsevier - via Crossref)
1,550
Informa (via Crossref)
1,538
ScienceDirect (Elsevier)
1,233
Springer Nature (via Crossref)
1,064
Canadian Science Publishing (via Crossref)
1,048
Canadian Science Publishing
194
Informa
118
Cambridge University Press (via Crossref)
88
The BMJ
79
Wiley Online Library (via Crossref)
62
University of Chicago Press (via Crossref)
49
SAGE Publications (via Crossref)
46
Istituto Nazionale di Fisica Nucleare (INFN): Open Access Repository
38
De Gruyter (via Crossref)
37
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
DIAL@UCLouvain (Université catholique de Louvain)
17
DIAL@USL-B (Université Saint-Louis, Bruxelles)
17
Johns Hopkins University Press
16
Johns Hopkins University Press (via Crossref)
14
Wiley Online Library
14
SAGE Publications
12
Aberdeen University Research Archive (AURA)
11
Brill (via Crossref)
10
IEEE Publications (via Crossref)
10
The BMJ (via Crossref)
9
The University of Queensland: UQ eSpace
9
Utrecht University Repository
8
Ghent University Academic Bibliography
7
ACS Publications (via Crossref)
6
Université de Lausanne (UNIL): Serval - Serveur académique lausannois
6
De Gruyter
4
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
APA Publishing (American Psychological Association)
2
Inderscience Publishers (via Crossref)
2
OECD iLibrary (via Crossref)
2
Scandinavian University Press (via Crossref)
2
University of Vienna: Phaidra
2
Zenodo
2
AMA (via Crossref)
1
ASCE Publications (American Society of Civil Engineers)
1
Brepols Publishers (via Crossref)
1
Caltech Authors (California Institute of Technology)
1
DSpace@MIT (Massachusetts Institute of Technology)
1
more ...