Content Provider
DataCite Metadata Store (German National Library of Science and Technology)
54,890
Zenodo
826
Unknown
718
Research Data Australia (Australian National Data Service - ANDS)
646
David Rumsey Historical Map Collection (Cartography Associates)
540
Directory of Open Access Journals: DOAJ Articles
413
Cambridge University Press
236
University of Canterbury, Christchurch: UC Research Repository
218
University of Otago: Research Archive (OUR Archive)
179
PubMed Central (PMC)
168
Wiley Online Library (via Crossref)
165
Informa (via Crossref)
157
Australian National University: ANU Digital Collections
150
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
137
PANGAEA - Data Publisher for Earth & Environmental Science
134
Natural Environment Research Council: NERC Open Research Archive
126
eCite UTAS (University of Tasmania)
123
The University of Queensland: UQ eSpace
122
National Library of Australia: Digital Collections
115
The University of Waikato: Research Commons
114
University of Tasmania: UTas ePrints
112
Open Access Victoria University of Wellington / Te Herenga Waka
102
Dryad Digital Repository (Duke University)
97
Biological and Chemical Oceanography Data Management Office (BCO-DMO) (via DataONE)
91
CESSDA DC Data Catalogue (Consortium of European Social Science Data Archives)
91
Magnolia press
89
Wiley Online Library
85
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center)
81
Massey University: Massey Research Online
80
RePEc (Research Papers in Economics)
80
Springer Nature (via Crossref)
80
University of Washington, Seattle: Digital Collections
80
Université de Nantes: HAL-UNIV-NANTES
76
University of Auckland Research Repository - ResearchSpace
75
Victoria University of Wellington: ResearchArchive
75
HighWire Press (Stanford University)
72
ScienceDirect (Elsevier - via Crossref)
63
WikiBooks - Open-content textbooks
61
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel)
59
Copernicus Publications: E-Journals
58
University of California: eScholarship
57
The University of Adelaide: Digital Library
56
Digital.CSIC (Spanish National Research Council)
54
University of Lethbridge Digitized Collections
54
CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas)
49
Frontiers: Figshare
49
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer)
47
Niedersächsisches Online-Archiv NOA
47
da|ra - Registration agency for social and economic data
46
MDPI Open Access Publishing
44
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