Content Provider
Directory of Open Access Journals: DOAJ Articles
1,598
Wiley Online Library
935
DataCite Metadata Store (German National Library of Science and Technology)
539
Wiley Online Library (via Crossref)
531
Springer Nature (via Crossref)
492
Unknown
445
University of California: eScholarship
308
ScienceDirect (Elsevier - via Crossref)
306
Canadian Science Publishing (via Crossref)
266
University of Calgary Journal Hosting
260
Informa (via Crossref)
245
Niedersächsisches Online-Archiv NOA
220
Cambridge University Press
219
University of Copenhagen: Research
218
Aarhus University: Research
214
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
213
Lund University Publications (LUP)
188
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center)
181
Wageningen UR (University & Research Centre): Digital Library
169
University of Tromsø: Munin Open Research Archive
158
Université de Nantes: HAL-UNIV-NANTES
137
Max Planck Society: MPG.PuRe
136
Canadian Science Publishing
124
Informa
112
HELDA – University of Helsinki Open Repository
110
Institut national des sciences de l'Univers: HAL-INSU
110
LaCRIS - University of Lapland Current Research System
110
LeibnizOpen (The Leibniz Association)
105
RePEc (Research Papers in Economics)
105
Dryad Digital Repository (Duke University)
99
IOP Publishing
97
Vrije Universiteit Amsterdam (VU): Research Portal
91
Zenodo
89
NORA (National aggregator of open repositories of Russian universities)
88
University of Groningen research database
88
IOP Publishing (via Crossref)
73
JSTOR (via Crossref)
73
Jultika - University of Oulu repository
71
ScienceDirect (Elsevier)
71
Arctic Institute of North America (via Crossref)
69
Natural Environment Research Council: NERC Open Research Archive
69
Umeå University: Publications (DiVA)
67
Natural Resources Institute Finland: Jukuri
63
Oxford University Press (via Crossref)
57
Oxford University Press
55
Frontiers (Publisher)
54
GFZpublic (German Research Centre for Geosciences, Helmholtz-Zentrum Potsdam)
50
University of Zurich (UZH): ZORA (Zurich Open Repository and Archive
50
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel)
48
University of Potsdam: publish.UP
48
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