Content Provider
DataCite Metadata Store (German National Library of Science and Technology)
82,437
Directory of Open Access Journals: DOAJ Articles
3,208
Zenodo
2,117
DataCite
1,585
Oxford University Press (via Crossref)
1,582
Canadian Science Publishing
1,453
Canadian Science Publishing (via Crossref)
1,298
University of Michigan: Digital Collections
1,179
Wiley Online Library
1,040
University of Tromsø: Munin Open Research Archive
1,025
Springer Nature (via Crossref)
984
Natural Environment Research Council: NERC Open Research Archive
712
ScienceDirect (Elsevier - via Crossref)
706
Biodiversity Heritage Library (BHL)
638
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
625
Institute for Marine Research: Brage IMR
560
PANGAEA - Data Publisher for Earth & Environmental Science
553
University of Michigan, Museum of Zoology: Animal Diversity Web
529
ScienceDirect (Elsevier)
513
Unknown
500
Université de Nantes: HAL-UNIV-NANTES
449
Informa (via Crossref)
445
Oxford University Press
405
DRO - Deakin Research Online
363
Cambridge University Press
354
University of Nebraska-Lincoln: DigitalCommons@UNL
278
Norwegian Institute for Nature Research: Brage NINA
241
University of Liège: ORBi (Open Repository and Bibliography)
223
Brill (via Crossref)
218
David Rumsey Historical Map Collection (Cartography Associates)
218
Universidad de Salamanca: Gredos (Gestión del Repositorio Documental de la Universidad de Salamanca)
209
University of British Columbia: cIRcle - UBC's Information Repository
204
Open Forest Data
193
Wiley Online Library (via Crossref)
188
HELDA – University of Helsinki Open Repository
176
University of California: eScholarship
172
De Gruyter (via Crossref)
164
University of Tasmania: UTas ePrints
162
Lund University Publications (LUP)
158
Institut national des sciences de l'Univers: HAL-INSU
154
Federation of Finnish Learned Societies: Scientific Journals Online
148
HAL - Université de La Rochelle
142
The University of Queensland: UQ eSpace
141
University of Chicago Press
131
HAL Sorbonne Université
129
Université de Montpellier: HAL
127
University of St Andrews: Digital Research Repository
126
Informa
124
EPHE (Ecole pratique des hautes études, Paris): HAL
123
University of Zurich (UZH): ZORA (Zurich Open Repository and Archive
120
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