Content Provider
DataCite Metadata Store (German National Library of Science and Technology)
447
Unknown
117
Wiley Online Library
112
University of St Andrews: Research Portal
98
Directory of Open Access Journals: DOAJ Articles
87
DataCite
63
PubMed Central (PMC)
63
Western Washington University: CEDAR (Contributing to Education through Digital Access to Research)
45
Zenodo
44
ScienceDirect (Elsevier - via Crossref)
42
Claremont Colleges Digital Library (CCDL)
41
ScholarsArchive@OSU (Oregon State University)
37
Springer Nature (via Crossref)
37
Wiley Online Library (via Crossref)
36
Frontiers: Figshare
28
Gulf of Alaska Data Portal (via DataONE)
23
University of Washington, Seattle: ResearchWorks
23
BioOne Online Journals
20
University of Alaska: ScholarWorks@UA
19
Aarhus University: Research
18
University of California: eScholarship
18
HighWire Press (Stanford University)
17
University of Liège: ORBi (Open Repository and Bibliography)
17
Memorial University of Newfoundland: Digital Archives Initiative (DAI)
16
Canadian Science Publishing
15
Biological and Chemical Oceanography Data Management Office (BCO-DMO) (via DataONE)
14
Canadian Science Publishing (via Crossref)
14
Dryad Digital Repository (Duke University)
14
JSTOR (via Crossref)
14
ScienceDirect (Elsevier)
14
University of St Andrews: Digital Research Repository
14
IODE-UNESCO: OceanDocs - E-Repository of Ocean Publications
13
Knowledge Network for Biocomplexity (via DataONE)
13
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
11
MDPI Open Access Publishing
11
Max Planck Society: MPG.PuRe
11
Nova Southeastern University: NSU Works
11
PeerJ Publishing
11
Repositorio Nacional Gobierno de Mexico
11
Defense Technical Information Center: DTIC Technical Reports database
10
International Association of Aquatic and Marine Science Libraries and Information Centers (IAMSLIC): Aquatic Commons
10
Research Workspace (via DataONE)
10
Texas A&M University Digital Repository
10
The University of Maine: DigitalCommons@UMaine
10
Wageningen UR (University & Research Centre): Digital Library
10
Arctic Data Center (via DataONE)
9
California State University (CSU): DSpace
9
Frontiers (Publisher)
9
Oxford University Press
9
Oxford University Press (via Crossref)
9
more ...