Content Provider
DataCite Metadata Store (German National Library of Science and Technology)
8,896
Unknown
1,708
Directory of Open Access Journals: DOAJ Articles
1,253
Wiley Online Library
928
PubMed Central (PMC)
927
Zenodo
582
University of St Andrews: Research Portal
482
Research Data Australia (Australian National Data Service - ANDS)
457
Woods Hole Scientific Community: WHOAS (Woods Hole Open Access Server)
399
Defense Technical Information Center: DTIC Technical Reports database
394
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
378
Springer Nature (via Crossref)
371
Frontiers: Figshare
351
ScienceDirect (Elsevier - via Crossref)
338
Wiley Online Library (via Crossref)
305
NOAA NCEI Environmental Data Archive (via DataONE)
298
University of Michigan: Digital Collections
291
ScienceDirect (Elsevier)
274
University of St Andrews: Digital Research Repository
271
SFU Digitized Collections (Simon Fraser University)
270
Université de Nantes: HAL-UNIV-NANTES
270
University of California: eScholarship
263
Aarhus University: Research
257
The Royal Society
236
The Royal Society: Figshare
235
Cambridge University Press
224
University of Washington, Seattle: Digital Collections
210
HighWire Press (Stanford University)
201
Dryad Digital Repository (Duke University)
198
Biodiversity Heritage Library (BHL)
197
PeerJ Publishing
195
Frontiers (Publisher)
171
Connecticut Digital Archive
169
University of Calgary Journal Hosting
162
Flanders Marine Institute (VLIZ): Open Marine Archive (OMA)
153
Oxford University Press (via Crossref)
153
Ohio State University (OSU): Knowledge Bank
148
The University of Queensland: UQ eSpace
148
Memorial University of Newfoundland: Digital Archives Initiative (DAI)
132
The University of Maine: DigitalCommons@UMaine
129
LeibnizOpen (The Leibniz Association)
125
ScholarsArchive@OSU (Oregon State University)
123
AU Digital Research Archive (American University)
121
PANGAEA - Data Publisher for Earth & Environmental Science
121
University of Groningen research database
120
Data Archiving and Networked Services (DANS): EASY (KNAW - Koninklijke Nederlandse Akademie van Wetenschappen)
115
Hathi Trust Digital Library
115
PLOS
113
MDPI Open Access Publishing
112
Claremont Colleges Digital Library (CCDL)
110
more ...