Content Provider
Directory of Open Access Journals: DOAJ Articles
677
ScienceDirect (Elsevier - via Crossref)
490
University of Tromsø: Munin Open Research Archive
296
Institute for Marine Research: Brage IMR
289
DataCite Metadata Store (German National Library of Science and Technology)
244
Springer Nature (via Crossref)
209
Wiley Online Library (via Crossref)
176
Unknown
155
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center)
132
Wiley Online Library
122
Polar Research (E-Journal)
120
Universitet i Oslo: Digitale utgivelser ved UiO (DUO)
113
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
111
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel)
109
University of Bergen: Bergen Open Research Archive (BORA-UiB)
106
ScienceDirect (Elsevier)
98
Cambridge University Press
94
Natural Environment Research Council: NERC Open Research Archive
83
Informa (via Crossref)
73
Oxford University Press
73
Institut national des sciences de l'Univers: HAL-INSU
68
Oxford University Press (via Crossref)
68
Niedersächsisches Online-Archiv NOA
65
Frontiers (Publisher)
61
Université de Nantes: HAL-UNIV-NANTES
61
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer)
53
RePEc (Research Papers in Economics)
53
NTNU Open Archive (Norwegian University of Science and Technology)
48
University of Tromsø: Septentrio Academic Publishing
48
Max Planck Society: MPG.PuRe
45
Zenodo
45
Aarhus University: Research
44
Technical University of Denmark: DTU Orbit
43
SINTEF Open (Brage)
39
University of Copenhagen: Research
38
IOP Publishing (via Crossref)
36
Canadian Science Publishing (via Crossref)
33
University of Calgary Journal Hosting
33
Digital.CSIC (Spanish National Research Council)
32
Flanders Marine Institute (VLIZ): Open Marine Archive (OMA)
31
University of Southampton: e-Prints Soton
28
Wageningen UR (University & Research Centre): Digital Library
28
University of the Highlands and Islands: Research Database of UHI
27
GFZpublic (German Research Centre for Geosciences, Helmholtz-Zentrum Potsdam)
25
HAL Sorbonne Université
25
Informa
25
NORA (National aggregator of open repositories of Russian universities)
24
Arctic and Antarctic Research (E-Journal)
23
Ghent University Academic Bibliography
23
Norwegian Institute for Water research: NIVA Open Access Archive (Brage)
23
more ...