Content Provider
DataCite Metadata Store (German National Library of Science and Technology)
995
Arctic Data Center (via DataONE)
46
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center)
39
Directory of Open Access Journals: DOAJ Articles
35
Frontiers: Figshare
35
PANGAEA - Data Publisher for Earth & Environmental Science
32
Unknown
27
University of Tromsø: Munin Open Research Archive
21
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
15
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel)
12
Zenodo
12
Université de Nantes: HAL-UNIV-NANTES
11
Wiley Online Library
11
Institut national des sciences de l'Univers: HAL-INSU
10
PubMed Central (PMC)
9
Aarhus University: Research
8
Plymouth Marine Science Electronic Archive (PlyMSEA - Plymouth Marine Laboratory, PML)
7
University of the Highlands and Islands: Research Database of UHI
7
HELDA – University of Helsinki Open Repository
6
Institute for Marine Research: Brage IMR
6
NTNU Open Archive (Norwegian University of Science and Technology)
6
Natural Environment Research Council: NERC Open Research Archive
6
Theses Canada/Thèses Canada (Library and Archives Canada)
6
University of Copenhagen: Research
6
HAL Sorbonne Université
5
Universitet i Oslo: Digitale utgivelser ved UiO (DUO)
5
University of Bergen: Bergen Open Research Archive (BORA-UiB)
5
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer)
4
Defense Technical Information Center: DTIC Technical Reports database
4
Digital.CSIC (Spanish National Research Council)
4
Dryad Digital Repository (Duke University)
4
HighWire Press (Stanford University)
4
Norwegian Institute for Water research: NIVA Open Access Archive (Brage)
4
RePEc (Research Papers in Economics)
4
University of Alaska: ScholarWorks@UA
4
Université de Bretagne Occidentale: HAL
4
Frontiers (Publisher)
3
Joint Research Centre, European Commission: JRC Publications Repository
3
LillOA (HAL Lille Open Archive, Université de Lille)
3
MDPI Open Access Publishing
3
Norwegian Institute for Nature Research: Brage NINA
3
Oxford University Press
3
Oxford University Press (via Crossref)
3
Polar Research (E-Journal)
3
Portail HAL-ANR (Agence Nationale de la Recherche)
3
University College London: UCL Discovery
3
University of Calgary Journal Hosting
3
University of California: eScholarship
3
Université Laval: CorpusUL
3
Utah State University: DigitalCommons@USU
3
more ...