Content Provider
Directory of Open Access Journals: DOAJ Articles
973
Wiley Online Library
622
ScienceDirect (Elsevier - via Crossref)
487
Wiley Online Library (via Crossref)
450
Springer Nature (via Crossref)
428
DataCite Metadata Store (German National Library of Science and Technology)
293
Unknown
263
Canadian Science Publishing (via Crossref)
256
University of Calgary Journal Hosting
190
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
183
Informa (via Crossref)
183
ScienceDirect (Elsevier)
153
University of Copenhagen: Research
152
Hokkaido University Collection of Scholarly and Academic Papers (HUSCAP)
137
Lund University Publications (LUP)
135
Niedersächsisches Online-Archiv NOA
134
University of Tromsø: Munin Open Research Archive
114
Canadian Science Publishing
107
HELDA – University of Helsinki Open Repository
106
Institut national des sciences de l'Univers: HAL-INSU
104
Université de Nantes: HAL-UNIV-NANTES
103
Aarhus University: Research
101
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel)
99
Cambridge University Press
98
Natural Resources Institute Finland: Jukuri
84
Arctic Institute of North America (via Crossref)
83
RePEc (Research Papers in Economics)
82
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center)
80
Informa
79
Oxford University Press (via Crossref)
78
Frontiers (Publisher)
75
University of California: eScholarship
70
Oxford University Press
68
Vrije Universiteit Amsterdam (VU): Research Portal
67
JSTOR (via Crossref)
66
Umeå University: Publications (DiVA)
63
Natural Environment Research Council: NERC Open Research Archive
59
Zenodo
51
Dryad Digital Repository (Duke University)
45
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer)
43
IOP Publishing (via Crossref)
40
LaCRIS - University of Lapland Current Research System
40
HAL Sorbonne Université
39
Cambridge University Press (via Crossref)
38
Digital.CSIC (Spanish National Research Council)
38
IRUA - Institutional Repository van de Universiteit Antwerpen
38
The Hong Kong University of Science and Technology: HKUST Institutional Repository
38
Max Planck Society: MPG.PuRe
37
ScholarsArchive@OSU (Oregon State University)
37
Wageningen UR (University & Research Centre): Digital Library
36
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