Content Provider
DataCite Metadata Store (German National Library of Science and Technology)
2,841
PANGAEA - Data Publisher for Earth & Environmental Science
2,367
Unknown
408
NOAA NCEI Environmental Data Archive (via DataONE)
375
Directory of Open Access Journals: DOAJ Articles
371
University of Tromsø: Munin Open Research Archive
285
Institute for Marine Research: Brage IMR
227
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center)
101
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel)
87
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
81
Arctic Data Center (via DataONE)
78
University of Bergen: Bergen Open Research Archive (BORA-UiB)
77
Copernicus Publications: E-Journals
76
Defense Technical Information Center: DTIC Technical Reports database
75
PubMed Central (PMC)
74
Frontiers: Figshare
62
Universitet i Oslo: Digitale utgivelser ved UiO (DUO)
60
Institut national des sciences de l'Univers: HAL-INSU
59
MDPI Open Access Publishing
57
Springer Nature (via Crossref)
54
LeibnizOpen (The Leibniz Association)
53
Natural Environment Research Council: NERC Open Research Archive
53
Wiley Online Library
46
NTNU Open Archive (Norwegian University of Science and Technology)
43
Université de Nantes: HAL-UNIV-NANTES
43
CyberLeninka (Scientific Electronic Library)
42
Niedersächsisches Online-Archiv NOA
41
HighWire Press (Stanford University)
40
Polar Research (E-Journal)
38
Digital.CSIC (Spanish National Research Council)
35
University of Tromsø: Septentrio Academic Publishing
35
DataCite
34
University of Calgary Journal Hosting
33
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer)
32
University of Southampton: e-Prints Soton
31
Dryad Digital Repository (Duke University)
29
Aarhus University: Research
27
Cambridge University Press
25
Wageningen UR (University & Research Centre): Digital Library
25
ScienceDirect (Elsevier - via Crossref)
24
Université de Versailles Saint-Quentin-en-Yvelines: HAL-UVSQ
24
University of Wisconsin, Milwaukee: UWM Libraries Digital Collections
22
Max Planck Society: MPG.PuRe
21
Springer Nature
20
École Polytechnique, Université Paris-Saclay: HAL
20
ARPI - Archivio della Ricerca dell'Università di Pisa
19
University of Stavanger: UiS Brage
19
Flanders Marine Institute (VLIZ): Open Marine Archive (OMA)
18
University of Southern Denmark Research Portal
18
University of the Highlands and Islands: Research Database of UHI
17
more ...