Content Provider
DataCite Metadata Store (German National Library of Science and Technology)
53,501
Unknown
715
Directory of Open Access Journals: DOAJ Articles
409
David Rumsey Historical Map Collection (Cartography Associates)
377
Research Data Australia (Australian National Data Service - ANDS)
335
University of Canterbury, Christchurch: UC Research Repository
219
Cambridge University Press
188
University of Otago: Research Archive (OUR Archive)
179
PubMed Central (PMC)
169
Australian National University: ANU Digital Collections
151
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
137
Wiley Online Library
137
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
115
University of Tasmania: UTas ePrints
112
Open Access Victoria University of Wellington / Te Herenga Waka
103
Informa (via Crossref)
102
Dryad Digital Repository (Duke University)
97
Biological and Chemical Oceanography Data Management Office (BCO-DMO) (via DataONE)
91
Magnolia press
89
Massey University: Massey Research Online
80
RePEc (Research Papers in Economics)
80
Springer Nature (via Crossref)
80
University of Washington, Seattle: Digital Collections
80
University of Auckland Research Repository - ResearchSpace
78
Université de Nantes: HAL-UNIV-NANTES
76
Victoria University of Wellington: ResearchArchive
75
DataCite
73
HighWire Press (Stanford University)
73
WikiBooks - Open-content textbooks
73
Lincoln University (New Zealand): Lincoln U Research Archive
62
PANGAEA - Data Publisher for Earth & Environmental Science
61
Digital.CSIC (Spanish National Research Council)
57
The University of Adelaide: Digital Library
57
Copernicus Publications: E-Journals
56
University of St Andrews: Research Portal
55
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel)
54
University of Lethbridge Digitized Collections
54
CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas)
50
University of California: eScholarship
49
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer)
48
ScienceDirect (Elsevier - via Crossref)
48
da|ra - Registration agency for social and economic data
47
BioOne Online Journals
45
MDPI Open Access Publishing
44
Niedersächsisches Online-Archiv NOA
44
SciTec Connect (Office of Scientific and Technical Information - OSTI, U.S. Department of Energy)
43
more ...