Content Provider
DataCite Metadata Store (German National Library of Science and Technology)
6,540
DataCite
728
Arctic Data Center (via DataONE)
386
Norwegian Polar Data Centre
299
Unknown
275
Frontiers: Figshare
148
Dryad Digital Repository (Duke University)
137
Natural Environment Research Council: NERC Open Research Archive
89
University of Michigan: Digital Collections
87
RePEc (Research Papers in Economics)
73
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center)
67
Springer Nature (via Crossref)
67
University of Leicester: Figshare
54
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel)
53
OsloMet (Oslo Metropolitan University): ODA (Open Digital Archive)
53
Data Archiving and Networked Services (DANS): EASY (KNAW - Koninklijke Nederlandse Akademie van Wetenschappen)
51
De Gruyter (via Crossref)
51
Geological Society of London: Figshare
49
Springer Nature
45
NASA Technical Reports Server (NTRS)
40
Sciendo (de Gruyter - via CrossRef)
34
GFZpublic (German Research Centre for Geosciences, Helmholtz-Zentrum Potsdam)
33
Informa (via Crossref)
33
SciTec Connect (Office of Scientific and Technical Information - OSTI, U.S. Department of Energy)
32
Wiley Online Library
32
Digital.CSIC (Spanish National Research Council)
30
Frontiers (Publisher)
30
University College London: UCL Discovery
30
University of Southampton: e-Prints Soton
29
JSTOR (via Crossref)
28
University of New Hampshire: Scholars Repository
28
University of Wisconsin, Milwaukee: UWM Libraries Digital Collections
28
Bates College: SCARAB (Scholarly Communication and Research at Bates)
27
ArXiv.org (Cornell University Library)
26
Durham University: Durham Research Online
26
Mount Holyoke College: Digital Collections (DC@MHC)
25
CyberLeninka (Scientific Electronic Library)
24
Loughborough University: Figshare
24
Lancaster University: Lancaster Eprints
22
The Royal Society: Figshare
22
IOP Publishing
20
The Winnower
19
Swedish National Data Service (SND)
18
EPFL Infoscience (Ecole Polytechnique Fédérale Lausanne)
17
Brill (via Crossref)
14
JSTOR
14
LSU Digital Commons (Louisiana State University)
14
Max Planck Society: MPG.PuRe
14
USGS Science Data Catalog (via DataONE)
14
University of Windsor, Ontario: Scholarship at UWindsor
14
more ...