Content Provider
DataCite Metadata Store (German National Library of Science and Technology)
7,037
PANGAEA - Data Publisher for Earth & Environmental Science
23
Directory of Open Access Journals: DOAJ Articles
17
Unknown
15
Natural Environment Research Council: NERC Open Research Archive
12
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
10
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center)
8
Digital.CSIC (Spanish National Research Council)
8
PubMed Central (PMC)
8
University of California: eScholarship
8
HAL Sorbonne Université
7
Wiley Online Library
7
Institut national des sciences de l'Univers: HAL-INSU
6
NOAA NCEI Environmental Data Archive (via DataONE)
6
Research Data Australia (Australian National Data Service - ANDS)
6
University of Groningen research database
6
Université de Nantes: HAL-UNIV-NANTES
6
Arctic Data Center (via DataONE)
4
Frontiers: Figshare
4
Springer Nature (via Crossref)
4
University of Tasmania: UTas ePrints
4
eCite UTAS (University of Tasmania)
4
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer)
3
Copernicus Publications: E-Journals
3
Digital Commons University of South Florida (USF)
3
HAL-CEA (Commissariat à l'énergie atomique et aux énergies alternatives)
3
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel)
3
Polar Research (E-Journal)
3
University of California Press
3
Wiley Online Library (via Crossref)
3
Woods Hole Scientific Community: WHOAS (Woods Hole Open Access Server)
3
Aarhus University: Research
2
Aix-Marseille Université: HAL
2
Biblioteca Digital FCEN-UBA (Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires)
2
Defense Technical Information Center: DTIC Technical Reports database
2
EPHE (Ecole pratique des hautes études, Paris): HAL
2
Flanders Marine Institute (VLIZ): Open Marine Archive (OMA)
2
Frontiers (Publisher)
2
Ghent University Academic Bibliography
2
HELDA – University of Helsinki Open Repository
2
HighWire Press (Stanford University)
2
King Abdullah University of Science and Technology: KAUST Repository
2
Max Planck Society: MPG.PuRe
2
NTNU Open Archive (Norwegian University of Science and Technology)
2
Niedersächsisches Online-Archiv NOA
2
The Hong Kong University of Science and Technology: HKUST Institutional Repository
2
The Royal Society
2
The University of Queensland: UQ eSpace
2
Universitat Politècnica de Catalunya (UPC): Theses and Dissertations Online (TDX)
2
University of Calgary Journal Hosting
2
more ...