Content Provider
Unknown
81
DataCite Metadata Store (German National Library of Science and Technology)
60
PANGAEA - Data Publisher for Earth & Environmental Science
44
Directory of Open Access Journals: DOAJ Articles
39
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
35
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel)
31
Copernicus Publications: E-Journals
27
Université de Nantes: HAL-UNIV-NANTES
27
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer)
26
Niedersächsisches Online-Archiv NOA
21
LeibnizOpen (The Leibniz Association)
20
Natural Environment Research Council: NERC Open Research Archive
15
Max Planck Society: MPG.PuRe
14
Digital.CSIC (Spanish National Research Council)
13
PubMed Central (PMC)
13
eCite UTAS (University of Tasmania)
12
University of Southampton: e-Prints Soton
11
Woods Hole Scientific Community: WHOAS (Woods Hole Open Access Server)
11
Cambridge University Press
10
DIAL@USL-B (Université Saint-Louis, Bruxelles)
10
Flanders Marine Institute (VLIZ): Open Marine Archive (OMA)
10
Institut national des sciences de l'Univers: HAL-INSU
10
OpenSky (NCAR/UCAR - National Center for Atmospheric Research/University Corporation for Atmospheric Research)
10
University of Groningen research database
10
Defense Technical Information Center: DTIC Technical Reports database
8
Université de Bretagne Occidentale: HAL
8
DSpace@MIT (Massachusetts Institute of Technology)
7
Universidad de Las Palmas de Gran Canaria: Acceda
7
IRD (Institute de recherche pour le développement): Horizon
6
NIOZ Repository (Royal Netherlands Institute for Sea Research)
6
University of Bergen: Bergen Open Research Archive (BORA-UiB)
6
University of Tasmania: UTas ePrints
6
BORIS (Bern Open Repository and Information System, University of Bern)
5
DI-fusion : dépôt institutionnel de l'Université libre de Bruxelles (ULB)
5
IODE-UNESCO: OceanDocs - E-Repository of Ocean Publications
5
Instituto Español de Oceanografía: e-IEO
5
ORA - Oxford University Research Archive
5
University of Cambridge, Department of Earth Sciences: ESC Publications
5
University of East Anglia: UEA Digital Repository
5
Utrecht University Repository
5
Apollo - University of Cambridge Repository
4
Columbia University: Academic Commons
4
Ghent University Academic Bibliography
4
MDPI Open Access Publishing
4
Peking University Institutional Repository (PKU IR)
4
Texas A&M University Digital Repository
4
The University of Queensland: UQ eSpace
4
University of California: eScholarship
4
Aarhus University: Research
3
CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas)
3
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