Content Provider
Biodiversity Heritage Library (BHL)
803
WikiBooks - Open-content textbooks
549
Unknown
230
Arctic Portal Library
213
Cambridge University Press
211
Aarhus University: Research
164
LaCRIS - University of Lapland Current Research System
116
University of Copenhagen: Research
103
Springer Nature
81
Informa
66
VTT's Research Information Portal
65
Technical University of Denmark: DTU Orbit
64
Oxford University Press (via Crossref)
57
RePEc (Research Papers in Economics)
48
UNESDOC - UNESCO Digital Library
48
norden (Nordic Council of Ministers): Publications (DiVA)
47
JSTOR
45
Springer Nature (via Crossref)
45
DataCite Metadata Store (German National Library of Science and Technology)
43
Open Research Library
40
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center)
38
Memorial University of Newfoundland: Digital Archives Initiative (DAI)
38
University of Lapland: Lauda
37
De Gruyter
35
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
33
Arctic Council Repository
30
Informa (via Crossref)
27
IODE-UNESCO: OceanDocs - E-Repository of Ocean Publications
24
UQAM - Université du Québec à Montréal: archipel
24
The National Academies Press
23
University of Groningen research database
23
Aalborg University's Research Portal
22
Roskilde University Research Portal (RUC)
22
Oxford University Press
20
Helsingfors Universitet: HELDA – Helsingin yliopiston digitaalinen arkisto
19
Brill
17
International Association of Aquatic and Marine Science Libraries and Information Centers (IAMSLIC): Aquatic Commons
17
Flanders Marine Institute (VLIZ): Open Marine Archive (OMA)
15
IIASA DARE (Data Repository of the International Institute of Applied Systems Analysis)
15
IIASA PURE (International Institute of Applied Systems Analysis: PUblications REpository)
14
PRISM - University of Calgary Digital Repository
13
Texas A&M University Digital Repository
13
University of Southampton: e-Prints Soton
13
University of Southern Denmark Research Portal
13
American Museum of Natural History: AMNH scientific publications
12
Australian National University: ANU Digital Collections
12
Johns Hopkins University Press
12
Université de Nantes: HAL-UNIV-NANTES
12
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer)
11
ScholarSpace at University of Hawaii at Manoa
11
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