Content Provider
DataCite Metadata Store (German National Library of Science and Technology)
166
PANGAEA - Data Publisher for Earth & Environmental Science
118
Unknown
94
Natural Environment Research Council: NERC Open Research Archive
74
Directory of Open Access Journals: DOAJ Articles
64
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
61
Université de Nantes: HAL-UNIV-NANTES
44
University of Southampton: e-Prints Soton
38
CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas)
34
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel)
26
IODE-UNESCO: OceanDocs - E-Repository of Ocean Publications
22
Woods Hole Scientific Community: WHOAS (Woods Hole Open Access Server)
22
Copernicus Publications: E-Journals
19
Institut national des sciences de l'Univers: HAL-INSU
19
Cambridge University Press
18
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer)
17
Digital.CSIC (Spanish National Research Council)
17
PubMed Central (PMC)
16
University of East Anglia: UEA Digital Repository
16
University of Tasmania: UTas ePrints
14
eCite UTAS (University of Tasmania)
14
Springer Nature (via Crossref)
13
Texas A&M University Digital Repository
13
HighWire Press (Stanford University)
12
Niedersächsisches Online-Archiv NOA
12
Utrecht University Repository
12
ScienceDirect (Elsevier - via Crossref)
11
DSpace@MIT (Massachusetts Institute of Technology)
10
Flanders Marine Institute (VLIZ): Open Marine Archive (OMA)
10
NIOZ Repository (Royal Netherlands Institute for Sea Research)
10
University of California: eScholarship
10
MDPI Open Access Publishing
9
Max Planck Society: MPG.PuRe
8
University of Groningen research database
8
University of St Andrews: Research Portal
8
National Institute of Polar Research Repository, Japan
7
ORA - Oxford University Research Archive
7
Universidad Nacional de La Plata (UNLP): SeDiCI (Servicio de Difusión de la Creación Intelectual)
7
University of Bristol: Bristol Research
7
University of St Andrews: Digital Research Repository
7
Université de Bretagne Occidentale: HAL
7
Caltech Authors (California Institute of Technology)
6
ETH Zürich Research Collection
6
Ghent University Academic Bibliography
6
Universidad de Chile: Repositorio académico
6
University of the Highlands and Islands: Research Database of UHI
6
Aarhus University: Research
5
Institute of Oceanology, Chinese Academy of Sciences: IOCAS-IR
5
Magnolia press
5
Media SuUB Bremen (Staats- und Universitätsbibliothek Bremen)
5
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