Content Provider
DataCite Metadata Store (German National Library of Science and Technology)
429
DataCite
212
Unknown
79
Zenodo
66
Wiley Online Library
60
Natural Environment Research Council: NERC Open Research Archive
47
Claremont Colleges Digital Library (CCDL)
37
Directory of Open Access Journals: DOAJ Articles
33
Oregon Digital (University of Oregon/Oregon State University)
27
PubMed Central (PMC)
27
Memorial University of Newfoundland: Research Repository
24
COCOON - COllections de COrpus Oraux Numériques
22
OLAC: Open Language Archives Community
22
The University of Utah: J. Willard Marriott Digital Library
22
Oxford University Press
20
Norwegian Institute for Nature Research: Brage NINA
18
HighWire Press (Stanford University)
17
Gulf of Alaska Data Portal (via DataONE)
15
Springer Nature (via Crossref)
14
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
11
ORA - Oxford University Research Archive
11
University of Michigan, Museum of Zoology: Animal Diversity Web
10
University of Tromsø: Munin Open Research Archive
9
University of the Highlands and Islands: Research Database of UHI
9
Université de Nantes: HAL-UNIV-NANTES
9
BioOne Online Journals
8
Biodiversity Heritage Library (BHL)
8
Canadian Science Publishing (via Crossref)
8
Informa
8
JSTOR
8
Magnolia press
8
Memorial University of Newfoundland: Digital Archives Initiative (DAI)
8
NTNU Open Archive (Norwegian University of Science and Technology)
8
Cambridge University Press
7
Research Workspace (via DataONE)
7
Canadian Science Publishing
6
JSTOR (via Crossref)
6
USGS Science Data Catalog (via DataONE)
6
Wageningen UR (University & Research Centre): Digital Library
6
Wiley Online Library (via Crossref)
6
Aarhus University: Research
5
DataverseNO
5
HAL - Université de La Rochelle
5
Institut national des sciences de l'Univers: HAL-INSU
5
Knowledge Network for Biocomplexity (via DataONE)
5
ScienceDirect (Elsevier)
5
University College London: UCL Discovery
5
University of Bergen: Bergen Open Research Archive (BORA-UiB)
5
University of Southampton: e-Prints Soton
5
University of Southern Denmark Research Portal
5
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