Content Provider
Frontiers (Publisher)
1,566
Canadian Science Publishing
280
Springer Nature (via Crossref)
195
Brill (via Crossref)
151
JSTOR (via Crossref)
142
Oxford University Press (via Crossref)
87
Wiley Online Library
75
De Gruyter (via Crossref)
72
Oxford University Press
37
ScienceDirect (Elsevier - via Crossref)
35
Canadian Science Publishing (via Crossref)
29
Wiley Online Library (via Crossref)
21
JSTOR
20
Brill
19
Sciendo (de Gruyter - via CrossRef)
18
Informa
17
De Gruyter
14
Istituto Nazionale di Fisica Nucleare (INFN): Open Access Repository
8
The University of Queensland: UQ eSpace
6
Informa (via Crossref)
4
University of Hull: Repository@Hull
4
Caltech Authors (California Institute of Technology)
3
Frontiers (Publisher - via CrossRef)
3
University of Nottingham: Repository@Nottingham
3
Ghent University Academic Bibliography
2
Michigan State University Press (via Crossref)
2
University of Chester: Chester Digital Repository
2
eScholarship Repository (University of California)
2
OpenMETU (Middle East Technical University)
1
Unknown
1
Zenodo
1