Content Provider
DataCite Metadata Store (German National Library of Science and Technology)
2,915
Natural Environment Research Council: NERC Open Research Archive
34
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center)
28
PANGAEA - Data Publisher for Earth & Environmental Science
25
Zenodo
24
Unknown
23
Directory of Open Access Journals: DOAJ Articles
22
Digital.CSIC (Spanish National Research Council)
11
Magnolia press
11
University of Southampton: e-Prints Soton
10
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
9
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel)
9
Copernicus Publications: E-Journals
8
University of Groningen research database
8
OpenSky (NCAR/UCAR - National Center for Atmospheric Research/University Corporation for Atmospheric Research)
7
University of California: eScholarship
7
NOAA NCEI Environmental Data Archive (via DataONE)
6
eCite UTAS (University of Tasmania)
6
Flanders Marine Institute (VLIZ): Open Marine Archive (OMA)
5
Niedersächsisches Online-Archiv NOA
5
Research Data Australia (Australian National Data Service - ANDS)
5
The University of Queensland: UQ eSpace
5
Université de Nantes: HAL-UNIV-NANTES
5
Biblioteca Digital FCEN-UBA (Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires)
4
CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas)
4
Cambridge University Press
4
Columbia University: Academic Commons
4
Institut national des sciences de l'Univers: HAL-INSU
4
National Institute of Polar Research Repository, Japan
4
University of East Anglia: UEA Digital Repository
4
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer)
3
MDPI Open Access Publishing
3
NASA Technical Reports Server (NTRS)
3
University of Wisconsin, Milwaukee: UWM Libraries Digital Collections
3
Aarhus University: Research
2
Apollo - University of Cambridge Repository
2
Caltech Authors (California Institute of Technology)
2
Cardiff University: ORCA (Online Research @ Cardiff)
2
DIAL@UCLouvain (Université catholique de Louvain)
2
DIAL@USL-B (Université Saint-Louis, Bruxelles)
2
David Rumsey Historical Map Collection (Cartography Associates)
2
EPHE (Ecole pratique des hautes études, Paris): HAL
2
ETH Zürich Research Collection
2
Frontiers (Publisher)
2
GFZpublic (German Research Centre for Geosciences, Helmholtz-Zentrum Potsdam)
2
IODE-UNESCO: OceanDocs - E-Repository of Ocean Publications
2
IOP Publishing
2
Max Planck Society: MPG.PuRe
2
ORA - Oxford University Research Archive
2
The University of Manchester: Research Explorer
2
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