Content Provider
DataCite Metadata Store (German National Library of Science and Technology)
1,337
Open Parks Network
830
Institute for Marine Research: Brage IMR
732
Unknown
674
Wiley Online Library
572
ScienceDirect (Elsevier - via Crossref)
491
Memorial University of Newfoundland: Digital Archives Initiative (DAI)
440
Directory of Open Access Journals: DOAJ Articles
425
ScienceDirect (Elsevier)
356
PubMed Central (PMC)
337
Springer Nature (via Crossref)
334
Canadian Science Publishing (via Crossref)
297
Technical University of Denmark: DTU Orbit
275
Canadian Science Publishing
273
HighWire Press (Stanford University)
264
University of Tromsø: Munin Open Research Archive
199
Wiley Online Library (via Crossref)
199
Digital.CSIC (Spanish National Research Council)
182
University of Bergen: Bergen Open Research Archive (BORA-UiB)
172
Memorial University of Newfoundland: Research Repository
165
Wageningen UR (University & Research Centre): Digital Library
160
Oxford University Press
159
Universitet i Oslo: Digitale utgivelser ved UiO (DUO)
153
IODE-UNESCO: OceanDocs - E-Repository of Ocean Publications
146
Frontiers: Figshare
128
Oxford University Press (via Crossref)
126
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center)
120
OpenAgrar (OA)
118
Zenodo
117
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel)
100
Instituto Español de Oceanografía: e-IEO
95
The University of Maine: DigitalCommons@UMaine
92
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
86
Dryad Digital Repository (Duke University)
74
Nofima Knowledge Archive (Brage)
72
PANGAEA - Data Publisher for Earth & Environmental Science
71
Aarhus University: Research
70
NTNU Open Archive (Norwegian University of Science and Technology)
65
Skemman (Iceland)
65
SINTEF Open (Brage)
63
University of Copenhagen: Research
61
University of the Highlands and Islands: Research Database of UHI
60
University of Stirling: Stirling Digital Research Repository
58
RePEc (Research Papers in Economics)
54
Université de Nantes: HAL-UNIV-NANTES
53
MDPI Open Access Publishing
50
DRO - Deakin Research Online
48
Open archive Norwegian University of Life Sciences: Brage NMBU
48
Frontiers (Publisher)
46
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer)
45
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