Content Provider
DataCite Metadata Store (German National Library of Science and Technology)
349
Directory of Open Access Journals: DOAJ Articles
195
Unknown
161
eCite UTAS (University of Tasmania)
137
University of Tasmania: UTas ePrints
118
Copernicus Publications: E-Journals
100
Research Data Australia (Australian National Data Service - ANDS)
98
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
94
Université de Nantes: HAL-UNIV-NANTES
80
LeibnizOpen (The Leibniz Association)
79
Natural Environment Research Council: NERC Open Research Archive
79
Niedersächsisches Online-Archiv NOA
57
National Institute of Polar Research Repository, Japan
54
Utrecht University Repository
38
Australian National University: ANU Digital Collections
33
Cambridge University Press
33
University of California: eScholarship
29
GFZpublic (German Research Centre for Geosciences, Helmholtz-Zentrum Potsdam)
27
Université Grenoble Alpes: HAL
27
Hokkaido University Collection of Scholarly and Academic Papers (HUSCAP)
24
DI-fusion : dépôt institutionnel de l'Université libre de Bruxelles (ULB)
22
MDPI Open Access Publishing
22
Institut national des sciences de l'Univers: HAL-INSU
21
PubMed Central (PMC)
21
Flanders Marine Institute (VLIZ): Open Marine Archive (OMA)
18
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer)
17
PANGAEA - Data Publisher for Earth & Environmental Science
17
Durham University: Durham Research Online
16
Digital.CSIC (Spanish National Research Council)
15
University of Southampton: e-Prints Soton
14
Ghent University Academic Bibliography
13
Università Ca’ Foscari Venezia: ARCA (Archivio Istituzionale della Ricerca)
13
EPFL Infoscience (Ecole Polytechnique Fédérale Lausanne)
12
Wiley Online Library
12
École Polytechnique, Université Paris-Saclay: HAL
12
Archives ouvertes de Paris-Saclay
11
DIAL@USL-B (Université Saint-Louis, Bruxelles)
11
Delft University of Technology: Institutional Repository
11
OpenSky (NCAR/UCAR - National Center for Atmospheric Research/University Corporation for Atmospheric Research)
11
Springer Nature (via Crossref)
11
The Winnower
11
University of Wollongong, Australia: Research Online
11
White Rose Research Online (Universities of Leeds, Sheffield & York)
11
Arctic Portal Library
10
DIAL@UCLouvain (Université catholique de Louvain)
10
NASA Technical Reports Server (NTRS)
10
SciTec Connect (Office of Scientific and Technical Information - OSTI, U.S. Department of Energy)
10
University College London: UCL Discovery
10
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel)
9
Anagrafe della Ricerca d'Ateneo (Universitá degli studi Roma Tre)
8
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