Content Provider
Directory of Open Access Journals: DOAJ Articles
3,592
DataCite Metadata Store (German National Library of Science and Technology)
2,236
Unknown
1,366
Wiley Online Library
1,105
University of Calgary Journal Hosting
935
Canadian Science Publishing (via Crossref)
892
Cambridge University Press
761
ScienceDirect (Elsevier - via Crossref)
715
RePEc (Research Papers in Economics)
643
Springer Nature (via Crossref)
643
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
463
Informa (via Crossref)
354
Canadian Science Publishing
344
Niedersächsisches Online-Archiv NOA
330
Arctic Institute of North America
270
University of Toronto: Research Repository T-Space
266
Université de Nantes: HAL-UNIV-NANTES
256
LeibnizOpen (The Leibniz Association)
223
Cambridge University Press (via Crossref)
221
National Research Council Canada: NRC Publications Archive
218
Wiley Online Library (via Crossref)
212
ScienceDirect (Elsevier)
209
University of New Brunswick: Centre for Digital Scholarship Journals
190
Carleton University's Institutional Repository
182
Institut national des sciences de l'Univers: HAL-INSU
180
Dryad Digital Repository (Duke University)
172
Informa
171
University of California: eScholarship
161
Oxford University Press (via Crossref)
154
Institut national de la recherche scientifique, Québec: Espace INRS
152
University of Tromsø: Septentrio Academic Publishing
150
Aarhus University: Research
141
University of St Andrews: Research Portal
139
Woods Hole Scientific Community: WHOAS (Woods Hole Open Access Server)
135
SAGE Publications (via Crossref)
127
JSTOR (via Crossref)
119
The Canadian Field-Naturalist (E-Journal)
118
SAGE Publications
117
Digital.CSIC (Spanish National Research Council)
115
University of Victoria (Canada): UVicDSpace
115
Magnolia press
111
Memorial University of Newfoundland: Research Repository
108
OpenEdition
103
UNESDOC - UNESCO Digital Library
96
White Rose Research Online (Universities of Leeds, Sheffield & York)
88
Indiana University: Digital Library of the Commons (DLC)
87
Western Libraries OJS
86
University of Copenhagen: Research
84
Natural Environment Research Council: NERC Open Research Archive
81
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel)
70
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