Content Provider
Directory of Open Access Journals: DOAJ Articles
400
ScienceDirect (Elsevier - via Crossref)
316
ScienceDirect (Elsevier)
203
Springer Nature (via Crossref)
174
Wiley Online Library
132
University of California: eScholarship
112
DataCite Metadata Store (German National Library of Science and Technology)
110
Hokkaido University Collection of Scholarly and Academic Papers (HUSCAP)
104
University of Calgary Journal Hosting
92
Unknown
71
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel)
64
Wiley Online Library (via Crossref)
57
Canadian Science Publishing (via Crossref)
55
Cambridge University Press
47
International Association of Aquatic and Marine Science Libraries and Information Centers (IAMSLIC): Aquatic Commons
43
IODE-UNESCO: OceanDocs - E-Repository of Ocean Publications
42
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
37
Canadian Science Publishing
37
Niedersächsisches Online-Archiv NOA
37
RePEc (Research Papers in Economics)
37
Xiamen University Institutional Repository
36
Oxford University Press (via Crossref)
34
Informa (via Crossref)
32
Magnolia press
28
Arctic Institute of North America
27
Natural Environment Research Council: NERC Open Research Archive
25
Université de Nantes: HAL-UNIV-NANTES
25
University of Southampton: e-Prints Soton
24
Oxford University Press
23
Arctic Portal Library
21
Woods Hole Scientific Community: WHOAS (Woods Hole Open Access Server)
21
University of St Andrews: Research Portal
20
eCite UTAS (University of Tasmania)
20
LeibnizOpen (The Leibniz Association)
19
Frontiers (Publisher)
17
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer)
16
University of Tasmania: UTas ePrints
16
University of Toronto: Research Repository T-Space
14
Institut national des sciences de l'Univers: HAL-INSU
13
Cambridge University Press (via Crossref)
12
Flanders Marine Institute (VLIZ): Open Marine Archive (OMA)
12
The Hong Kong University of Science and Technology: HKUST Institutional Repository
12
JSTOR (via Crossref)
11
Old Dominion University: ODU Digital Commons
11
AAAS Resource Center (American Association for the Advancement of Science)
10
DataCite
10
Digital.CSIC (Spanish National Research Council)
10
Dryad Digital Repository (Duke University)
10
Naval Postgraduate School: Calhoun
10
Aarhus University: Research
9
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