Content Provider
Directory of Open Access Journals: DOAJ Articles
1,992
Wiley Online Library
1,735
DataCite Metadata Store (German National Library of Science and Technology)
987
University of Calgary Journal Hosting
974
Cambridge University Press
788
Arctic Institute of North America
529
University of California: eScholarship
479
Canadian Science Publishing
467
Unknown
459
ScienceDirect (Elsevier - via Crossref)
404
Informa
367
Canadian Science Publishing (via Crossref)
360
Springer Nature (via Crossref)
344
Wiley Online Library (via Crossref)
299
Niedersächsisches Online-Archiv NOA
298
Informa (via Crossref)
270
ScienceDirect (Elsevier)
265
RePEc (Research Papers in Economics)
261
Oxford University Press (via Crossref)
231
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
227
Oxford University Press
211
University of Alaska: ScholarWorks@UA
209
Biodiversity Heritage Library (BHL)
194
LeibnizOpen (The Leibniz Association)
172
JSTOR (via Crossref)
162
Institut national des sciences de l'Univers: HAL-INSU
146
Université de Nantes: HAL-UNIV-NANTES
144
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center)
130
Caltech Authors (California Institute of Technology)
120
Zenodo
115
Cambridge University Press (via Crossref)
114
IOP Publishing
108
Frontiers (Publisher)
106
AAAS Resource Center (American Association for the Advancement of Science)
105
University of Tromsø: Septentrio Academic Publishing
105
SAGE Publications
99
Dryad Digital Repository (Duke University)
97
DataCite
96
Alces (A Journal Devoted to the Biology and Management of Moose)
89
University of St Andrews: Research Portal
87
IODE-UNESCO: OceanDocs - E-Repository of Ocean Publications
83
International Association of Aquatic and Marine Science Libraries and Information Centers (IAMSLIC): Aquatic Commons
81
Magnolia press
81
OpenSky (NCAR/UCAR - National Center for Atmospheric Research/University Corporation for Atmospheric Research)
76
University of Chicago Press (via Crossref)
71
Woods Hole Scientific Community: WHOAS (Woods Hole Open Access Server)
71
Hokkaido University Collection of Scholarly and Academic Papers (HUSCAP)
70
JSTOR
70
ScholarsArchive@OSU (Oregon State University)
59
The Royal Society
59
more ...