Content Provider
Directory of Open Access Journals: DOAJ Articles
1,196
DataCite Metadata Store (German National Library of Science and Technology)
1,046
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
717
Université de Nantes: HAL-UNIV-NANTES
536
Unknown
472
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer)
263
Institut national des sciences de l'Univers: HAL-INSU
245
Wiley Online Library
213
Natural Environment Research Council: NERC Open Research Archive
205
Springer Nature (via Crossref)
190
eCite UTAS (University of Tasmania)
189
ScienceDirect (Elsevier - via Crossref)
173
Niedersächsisches Online-Archiv NOA
165
LeibnizOpen (The Leibniz Association)
153
Cambridge University Press
138
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel)
136
University of Tasmania: UTas ePrints
136
University of California: eScholarship
133
University of Southampton: e-Prints Soton
133
Indian Academy of Sciences: Publication of Fellows
126
RePEc (Research Papers in Economics)
93
Australian National University: ANU Digital Collections
87
University of Calgary Journal Hosting
86
HAL - Université de La Rochelle
85
Digital.CSIC (Spanish National Research Council)
84
National Institute of Oceanography, India: Digital Repository Service (DRS@nio)
73
Université de Bretagne Occidentale: HAL
69
Magnolia press
67
ScienceDirect (Elsevier)
62
Ministry of Earth Sciences, Government of India: Open Access Digital Repository
61
Max Planck Society: MPG.PuRe
57
OpenSky (NCAR/UCAR - National Center for Atmospheric Research/University Corporation for Atmospheric Research)
56
Flanders Marine Institute (VLIZ): Open Marine Archive (OMA)
54
University of St Andrews: Research Portal
53
Informa (via Crossref)
50
ORA - Oxford University Research Archive
46
AJOL - African Journals Online
45
The University of Queensland: UQ eSpace
45
Muséum National d'Histoire Naturelle (MNHM): HAL
44
Université de Paris: Portail HAL
42
Open Access Journal Hosting (University of British Columbia)
41
University of Pretoria: UPSpace
40
University of East Anglia: UEA Digital Repository
39
Wiley Online Library (via Crossref)
37
Woods Hole Scientific Community: WHOAS (Woods Hole Open Access Server)
37
Stellenbosch University: SUNScholar Research Repository
36
École Polytechnique, Université Paris-Saclay: HAL
36
Indian Institute of Geomagnetism (IIG): Repository
34
KRISHI Publication and Data Inventory Repository (Knowledge based Resources Information Systems Hub for Innovations in Agriculture - Indian Council of Agricultural Research, ICAR)
34
Institut National de la Recherche Agronomique: ProdINRA
33
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