Content Provider
Directory of Open Access Journals: DOAJ Articles
107
Unknown
90
DataCite Metadata Store (German National Library of Science and Technology)
88
LeibnizOpen (The Leibniz Association)
75
Copernicus Publications: E-Journals
66
Natural Environment Research Council: NERC Open Research Archive
51
Niedersächsisches Online-Archiv NOA
40
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
24
PubMed Central (PMC)
22
eCite UTAS (University of Tasmania)
22
University of California: eScholarship
19
Utrecht University Repository
17
Cambridge University Press
16
University of Tasmania: UTas ePrints
15
Université de Nantes: HAL-UNIV-NANTES
15
MDPI Open Access Publishing
12
CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas)
11
OpenSky (NCAR/UCAR - National Center for Atmospheric Research/University Corporation for Atmospheric Research)
11
PANGAEA - Data Publisher for Earth & Environmental Science
11
GFZpublic (German Research Centre for Geosciences, Helmholtz-Zentrum Potsdam)
10
National Institute of Polar Research Repository, Japan
9
White Rose Research Online (Universities of Leeds, Sheffield & York)
9
Wiley Online Library
9
DIAL@USL-B (Université Saint-Louis, Bruxelles)
8
University of Southampton: e-Prints Soton
8
Columbia University: Academic Commons
7
DIAL@UCLouvain (Université catholique de Louvain)
7
Flanders Marine Institute (VLIZ): Open Marine Archive (OMA)
7
Institut national des sciences de l'Univers: HAL-INSU
7
University College London: UCL Discovery
7
Apollo - University of Cambridge Repository
6
Archives ouvertes de Paris-Saclay
6
Caltech Authors (California Institute of Technology)
6
DI-fusion : dépôt institutionnel de l'Université libre de Bruxelles (ULB)
6
Delft University of Technology: Institutional Repository
6
Earth-Prints (Istituto Nazionale di Geofisica e Vulcanologia)
6
Université de Genève: Archive ouverte UNIGE
6
Vernadsky National Library of Ukraine: DSpace
6
Australian National University: ANU Digital Collections
5
Hokkaido University Collection of Scholarly and Academic Papers (HUSCAP)
5
Max Planck Society: MPG.PuRe
5
Northumbria University, Newcastle: Northumbria Research Link (NRL)
5
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel)
5
Springer Nature (via Crossref)
5
University of Glasgow: Enlighten - Publications
5
Université Grenoble Alpes: HAL
5
Polar Research (E-Journal)
4
Universidad de Chile: Repositorio académico
4
University of Bristol: Bristol Research
4
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer)
3
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