Content Provider
DataCite Metadata Store (German National Library of Science and Technology)
1,059
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center)
58
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel)
51
Arctic Data Center (via DataONE)
34
Directory of Open Access Journals: DOAJ Articles
31
PANGAEA - Data Publisher for Earth & Environmental Science
30
Unknown
16
Copernicus Publications: E-Journals
13
Frontiers: Figshare
13
Niedersächsisches Online-Archiv NOA
9
KovsieScholar Repository (University of the Free State - UFS UV)
8
Polar Research (E-Journal)
8
MDPI Open Access Publishing
6
Defense Technical Information Center: DTIC Technical Reports database
4
Institute of Oceanology, Chinese Academy of Sciences: IOCAS-IR
4
MACAU: Open Access Repository of Kiel University
4
Natural Environment Research Council: NERC Open Research Archive
4
Digital.CSIC (Spanish National Research Council)
3
GFZpublic (German Research Centre for Geosciences, Helmholtz-Zentrum Potsdam)
3
University of Southampton: e-Prints Soton
3
University of Tromsø: Munin Open Research Archive
3
Frontiers (Publisher)
2
GEO-LEOe-docs (FID GEO)
2
HELDA – University of Helsinki Open Repository
2
Max Planck Society: MPG.PuRe
2
Media SuUB Bremen (Staats- und Universitätsbibliothek Bremen)
2
NIOZ Repository (Royal Netherlands Institute for Sea Research)
2
National Institute of Polar Research Repository, Japan
2
PubMed Central (PMC)
2
University of California: eScholarship
2
Wiley Online Library (via Crossref)
2
Zenodo
2
ArXiv.org (Cornell University Library)
1
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
1
Arctic and Antarctic Research (E-Journal)
1
Boston University: OpenBU
1
CESSDA DC Data Catalogue (Consortium of European Social Science Data Archives)
1
Cambridge University Press
1
CentAUR: Central Archive at the University of Reading
1
Delft University of Technology: Institutional Repository
1
Flanders Marine Institute (VLIZ): Open Marine Archive (OMA)
1
Freie Universität Berlin: Refubium (FU Berlin)
1
IOP Publishing
1
Lund University Publications (LUP)
1
OPUS - Publication Server of the University of Stuttgart
1
Old Dominion University: ODU Digital Commons
1
Open Access LMU (Ludwig-Maximilians-University Munich)
1
OpenAgrar (OA)
1
Polar Research
1
Publication Server of Goethe University Frankfurt am Main
1
more ...