Content Provider
Frontiers (Publisher)
1,191
Canadian Science Publishing
279
Springer Nature (via Crossref)
195
Brill (via Crossref)
151
JSTOR (via Crossref)
141
Oxford University Press (via Crossref)
84
De Gruyter (via Crossref)
67
Canadian Science Publishing (via Crossref)
29
Oxford University Press
29
ScienceDirect (Elsevier - via Crossref)
29
Brill
19
JSTOR
18
Sciendo (de Gruyter - via CrossRef)
18
Informa
17
De Gruyter
11
Istituto Nazionale di Fisica Nucleare (INFN): Open Access Repository
8
ScienceDirect (Elsevier)
6
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
Wiley Online Library (via Crossref)
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
Wiley Online Library
1
Zenodo
1