Content Provider
Directory of Open Access Journals: DOAJ Articles
112
University of Calgary Journal Hosting
35
Unknown
27
Xiamen University Institutional Repository
25
DataCite Metadata Store (German National Library of Science and Technology)
21
Hokkaido University Collection of Scholarly and Academic Papers (HUSCAP)
17
Springer Nature (via Crossref)
15
Arctic Portal Library
14
Cambridge University Press
14
Niedersächsisches Online-Archiv NOA
14
ScienceDirect (Elsevier - via Crossref)
14
Frontiers (Publisher)
12
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
10
Canadian Science Publishing (via Crossref)
10
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center)
7
Natural Environment Research Council: NERC Open Research Archive
7
Université de Nantes: HAL-UNIV-NANTES
7
Wiley Online Library (via Crossref)
7
Woods Hole Scientific Community: WHOAS (Woods Hole Open Access Server)
7
Magnolia press
6
National Institute of Polar Research Repository, Japan
6
Old Dominion University: ODU Digital Commons
6
Oxford University Press (via Crossref)
6
Arctic Institute of North America (via Crossref)
5
Naval Postgraduate School: Calhoun
5
Aarhus University: Research
4
Biodiversity Heritage Library (BHL)
4
Flanders Marine Institute (VLIZ): Open Marine Archive (OMA)
4
Institut national des sciences de l'Univers: HAL-INSU
4
Oxford University Press
4
Pohang University of Science and Technology (POSTECH): Open Access System for Information Sharing (OASIS)
4
Polar Research (E-Journal)
4
Research Center for Eco-Environmental Sciences: RCEES OpenIR (Chinese Academy of Sciences)
4
ScholarsArchive@OSU (Oregon State University)
4
The Hong Kong University of Science and Technology: HKUST Institutional Repository
4
University of Tasmania: UTas ePrints
4
Zenodo
4
eCite UTAS (University of Tasmania)
4
AAAS Resource Center (American Association for the Advancement of Science - via Crossref)
3
Canadian Science Publishing
3
Digital.CSIC (Spanish National Research Council)
3
Dryad Digital Repository (Duke University)
3
Hereon Publications (Helmholtz-Zentrum)
3
Institut national de la recherche scientifique, Québec: Espace INRS
3
Institute of Oceanology, Chinese Academy of Sciences: IOCAS-IR
3
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel)
3
OpenAgrar (OA)
3
University of California: eScholarship
3
University of Southampton: e-Prints Soton
3
University of Toronto: Research Repository T-Space
3
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