Content Provider
DataCite Metadata Store (German National Library of Science and Technology)
1,996
NOAA NCEI Environmental Data Archive (via DataONE)
372
Unknown
182
PANGAEA - Data Publisher for Earth & Environmental Science
90
Directory of Open Access Journals: DOAJ Articles
77
University of Tromsø: Munin Open Research Archive
52
Defense Technical Information Center: DTIC Technical Reports database
50
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel)
47
Arctic Data Center (via DataONE)
34
Copernicus Publications: E-Journals
31
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
30
University of Southampton: e-Prints Soton
26
Institute for Marine Research: Brage IMR
25
Natural Environment Research Council: NERC Open Research Archive
23
University of Bergen: Bergen Open Research Archive (BORA-UiB)
20
LeibnizOpen (The Leibniz Association)
19
University of Wisconsin, Milwaukee: UWM Libraries Digital Collections
16
MDPI Open Access Publishing
15
Niedersächsisches Online-Archiv NOA
15
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer)
14
Frontiers: Figshare
13
Institut national des sciences de l'Univers: HAL-INSU
13
PubMed Central (PMC)
13
DataCite
12
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center)
10
Digital.CSIC (Spanish National Research Council)
10
Université de Nantes: HAL-UNIV-NANTES
10
Instituto Español de Oceanografía: e-IEO
9
Springer Nature (via Crossref)
9
The Royal Society: Figshare
8
Université de Bretagne Occidentale: HAL
8
Griffith University: Griffith Research Online
7
Max Planck Society: MPG.PuRe
7
NIOZ Repository (Royal Netherlands Institute for Sea Research)
7
Aarhus University: Research
6
Institute of Oceanology, Chinese Academy of Sciences: IOCAS-IR
6
Lund University Publications (LUP)
6
University of the Highlands and Islands: Research Database of UHI
6
Wiley Online Library
6
ARPI - Archivio della Ricerca dell'Università di Pisa
5
OpenSky (NCAR/UCAR - National Center for Atmospheric Research/University Corporation for Atmospheric Research)
5
Polar Research (E-Journal)
5
ScienceDirect (Elsevier - via Crossref)
5
Universitet i Oslo: Digitale utgivelser ved UiO (DUO)
5
University of Calgary Journal Hosting
5
White Rose Research Online (Universities of Leeds, Sheffield & York)
5
Arctic Review on Law and Politics
4
CyberLeninka (Scientific Electronic Library)
4
Flanders Marine Institute (VLIZ): Open Marine Archive (OMA)
4
GEO-LEOe-docs (FID GEO)
4
more ...