Content Provider
DataCite Metadata Store (German National Library of Science and Technology)
123
Directory of Open Access Journals: DOAJ Articles
119
Unknown
79
PANGAEA - Data Publisher for Earth & Environmental Science
78
eCite UTAS (University of Tasmania)
56
Copernicus Publications: E-Journals
46
Natural Environment Research Council: NERC Open Research Archive
32
Niedersächsisches Online-Archiv NOA
31
National Institute of Polar Research Repository, Japan
25
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
24
University of Tasmania: UTas ePrints
24
PubMed Central (PMC)
20
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel)
17
Defense Technical Information Center: DTIC Technical Reports database
16
Université de Nantes: HAL-UNIV-NANTES
16
Cambridge University Press
15
Zenodo
15
OpenSky (NCAR/UCAR - National Center for Atmospheric Research/University Corporation for Atmospheric Research)
14
University of Groningen research database
14
Woods Hole Scientific Community: WHOAS (Woods Hole Open Access Server)
13
Digital.CSIC (Spanish National Research Council)
12
Flanders Marine Institute (VLIZ): Open Marine Archive (OMA)
12
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer)
11
MDPI Open Access Publishing
10
DI-fusion : dépôt institutionnel de l'Université libre de Bruxelles (ULB)
9
Institut national des sciences de l'Univers: HAL-INSU
9
Springer Nature (via Crossref)
9
University of California: eScholarship
8
University of Southampton: e-Prints Soton
8
Wiley Online Library (via Crossref)
8
CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas)
7
NIOZ Repository (Royal Netherlands Institute for Sea Research)
7
ScienceDirect (Elsevier - via Crossref)
6
EPHE (Ecole pratique des hautes études, Paris): HAL
5
GFZpublic (German Research Centre for Geosciences, Helmholtz-Zentrum Potsdam)
5
ScienceDirect (Elsevier)
5
Wageningen UR (University & Research Centre): Digital Library
5
Arctic Portal Library
4
GEO-LEOe-docs (FID GEO)
4
HighWire Press (Stanford University)
4
Hokkaido University Collection of Scholarly and Academic Papers (HUSCAP)
4
Institute of Oceanology, Chinese Academy of Sciences: IOCAS-IR
4
KU Leuven: Lirias
4
Northumbria University, Newcastle: Northumbria Research Link (NRL)
4
University of St Andrews: Research Portal
4
Università degli Studi di Napoli "Parthenope": CINECA IRIS
4
Wiley Online Library
4
theses.fr
4
Caltech Authors (California Institute of Technology)
3
Columbia University: Academic Commons
3
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