Content Provider
DataCite Metadata Store (German National Library of Science and Technology)
324,777
DataCite
74,606
Zenodo
49,316
University of Michigan: Digital Collections
29,695
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center)
23,017
Unknown
21,489
Arctic Data Center (via DataONE)
18,658
University of Washington, Seattle: Digital Collections
17,922
CyberLeninka (Scientific Electronic Library)
17,438
Research Data Australia (Australian National Data Service - ANDS)
11,470
NOAA NCEI Environmental Data Archive (via DataONE)
10,707
Memorial University of Newfoundland: Digital Archives Initiative (DAI)
9,171
David Rumsey Historical Map Collection (Cartography Associates)
8,673
RePEc (Research Papers in Economics)
7,626
Natural Environment Research Council: NERC Open Research Archive
7,360
Springer Nature (via Crossref)
7,067
Frontiers: Figshare
6,697
SciTec Connect (Office of Scientific and Technical Information - OSTI, U.S. Department of Energy)
6,342
Dryad Digital Repository (Duke University)
5,829
Springer Nature
5,274
NASA Technical Reports Server (NTRS)
5,269
JSTOR (via Crossref)
4,922
Arctic Institute of North America
4,889
University of California: eScholarship
4,719
Biodiversity Heritage Library (BHL)
4,599
OECD iLibrary (via Crossref)
4,156
ArXiv.org (Cornell University Library)
4,110
Frontiers (Publisher)
4,088
SFU Digitized Collections (Simon Fraser University)
4,075
IOP Publishing
3,716
Wiley Online Library
3,536
USGS Science Data Catalog (via DataONE)
3,232
Biological and Chemical Oceanography Data Management Office (BCO-DMO) (via DataONE)
3,187
University of Wisconsin, Milwaukee: UWM Libraries Digital Collections
3,002
Digital.CSIC (Spanish National Research Council)
2,924
IEDA: Marine-Geo Digital Library (via DataONE)
2,828
OLAC: Open Language Archives Community
2,810
JSTOR
2,797
Informa (via Crossref)
2,706
Cambridge University Press
2,571
King Abdullah University of Science and Technology: KAUST Repository
2,564
Oxford University Press (via Crossref)
2,559
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel)
2,526
Data Archiving and Networked Services (DANS): EASY (KNAW - Koninklijke Nederlandse Akademie van Wetenschappen)
2,474
IEEE Publications
2,469
University of Nebraska-Lincoln: DigitalCommons@UNL
2,412
North Dakota State University (NDSU): Digital Horizons
2,244
National Library of Australia: Digital Collections
2,054
ScholarsArchive@OSU (Oregon State University)
1,944
Université de Montréal (UdeM): Calypso - Collections d'objets numériques
1,871
more ...