Content Provider
DataCite Metadata Store (German National Library of Science and Technology)
3,023
PANGAEA - Data Publisher for Earth & Environmental Science
2,464
Unknown
390
Directory of Open Access Journals: DOAJ Articles
375
NOAA NCEI Environmental Data Archive (via DataONE)
375
University of Tromsø: Munin Open Research Archive
284
Institute for Marine Research: Brage IMR
241
Zenodo
145
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center)
144
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel)
88
Frontiers: Figshare
86
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
81
Arctic Data Center (via DataONE)
78
Copernicus Publications: E-Journals
77
Defense Technical Information Center: DTIC Technical Reports database
75
University of Bergen: Bergen Open Research Archive (BORA-UiB)
75
PubMed Central (PMC)
73
Wiley Online Library
66
Institut national des sciences de l'Univers: HAL-INSU
59
Universitet i Oslo: Digitale utgivelser ved UiO (DUO)
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
Cambridge University Press
44
Niedersächsisches Online-Archiv NOA
43
Université de Nantes: HAL-UNIV-NANTES
43
CyberLeninka (Scientific Electronic Library)
42
NTNU Open Archive (Norwegian University of Science and Technology)
42
Polar Research (E-Journal)
42
HighWire Press (Stanford University)
40
Digital.CSIC (Spanish National Research Council)
35
University of Tromsø: Septentrio Academic Publishing
35
Wiley Online Library (via Crossref)
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
HAL Sorbonne Université
30
Dryad Digital Repository (Duke University)
29
Aarhus University: Research
28
ScienceDirect (Elsevier - via Crossref)
27
Frontiers (Publisher)
25
Arctic and Antarctic Research (E-Journal)
24
Max Planck Society: MPG.PuRe
24
Université de Versailles Saint-Quentin-en-Yvelines: HAL-UVSQ
24
Wageningen UR (University & Research Centre): Digital Library
24
University of the Highlands and Islands: Research Database of UHI
23
HAL-CEA (Commissariat à l'énergie atomique et aux énergies alternatives)
22
University of Stavanger: UiS Brage
22
University of Wisconsin, Milwaukee: UWM Libraries Digital Collections
22
more ...