Content Provider
DataCite Metadata Store (German National Library of Science and Technology)
6,575
Arctic Data Center (via DataONE)
41
Research Workspace (via DataONE)
35
Unknown
24
Directory of Open Access Journals: DOAJ Articles
23
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
19
NOAA NCEI Environmental Data Archive (via DataONE)
10
Université de Nantes: HAL-UNIV-NANTES
9
Copernicus Publications: E-Journals
8
Hokkaido University Collection of Scholarly and Academic Papers (HUSCAP)
8
Institut national des sciences de l'Univers: HAL-INSU
8
Woods Hole Scientific Community: WHOAS (Woods Hole Open Access Server)
8
PubMed Central (PMC)
6
ScienceDirect (Elsevier - via Crossref)
6
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer)
5
Ghent University Academic Bibliography
5
Institute of Oceanology, Chinese Academy of Sciences: IOCAS-IR
5
Old Dominion University: ODU Digital Commons
5
Theses Canada/Thèses Canada (Library and Archives Canada)
5
Aarhus University: Research
4
Natural Environment Research Council: NERC Open Research Archive
4
Niedersächsisches Online-Archiv NOA
4
Pohang University of Science and Technology (POSTECH): Open Access System for Information Sharing (OASIS)
4
University of Alaska: ScholarWorks@UA
4
University of British Columbia: cIRcle - UBC's Information Repository
4
University of California: eScholarship
4
University of Groningen research database
4
University of Southampton: e-Prints Soton
4
University of Victoria (Canada): UVicDSpace
4
Université de Bretagne Occidentale: HAL
4
Xiamen University Institutional Repository
4
Aix-Marseille Université: HAL
3
Arctic Portal Library
3
Clark University: Clark Digital Commons
3
Digital Commons University of South Florida (USF)
3
Digital.CSIC (Spanish National Research Council)
3
Frontiers: Figshare
3
MDPI Open Access Publishing
3
Max Planck Society: MPG.PuRe
3
National Institute of Polar Research Repository, Japan
3
University of South Florida St. Petersburg: Digital USFSP
3
Biological and Chemical Oceanography Data Management Office (BCO-DMO) (via DataONE)
2
Borealis
2
DataCite
2
IOP Publishing
2
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel)
2
PANGAEA - Data Publisher for Earth & Environmental Science
2
Research Data Australia (Australian National Data Service - ANDS)
2
Springer Nature (via Crossref)
2
W&M ScholarWorks
2
more ...