Content Provider
DataCite Metadata Store (German National Library of Science and Technology)
168
Zenodo
29
Unknown
18
Memorial University of Newfoundland: Research Repository
10
Directory of Open Access Journals: DOAJ Articles
7
Digital.CSIC (Spanish National Research Council)
5
HighWire Press (Stanford University)
3
PubMed Central (PMC)
3
RePEc (Research Papers in Economics)
3
Cambridge University Press
2
Canadian Science Publishing (via Crossref)
2
Copernicus Publications: E-Journals
2
Data Archiving and Networked Services (DANS): EASY (KNAW - Koninklijke Nederlandse Akademie van Wetenschappen)
2
Dryad Digital Repository (Duke University)
2
Instituto Español de Oceanografía: e-IEO
2
Oxford University Press
2
Woods Hole Scientific Community: WHOAS (Woods Hole Open Access Server)
2
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer)
1
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
1
Bangor University: Research Portal
1
BioOne Online Journals
1
COS Center for Open Science
1
Dalhousie University: DalSpace Institutional Repository
1
Institut national des sciences de l'Univers: HAL-INSU
1
MDPI Open Access Publishing
1
MacSphere (McMaster University)
1
Memorial University of Newfoundland: Digital Archives Initiative (DAI)
1
National Research Council Canada: NRC Publications Archive
1
Natural Environment Research Council: NERC Open Research Archive
1
Niedersächsisches Online-Archiv NOA
1
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel)
1
Oxford University Press (via Crossref)
1
Queen's University, Ontario: QSpace
1
Schulich Scholars (Schulich School of Law, Dalhousie University)
1
The Canadian Field-Naturalist (E-Journal)
1
The Humane Society of the United States, Institute for Science and Policy: Animal Studies Repository
1
Theses Canada/Thèses Canada (Library and Archives Canada)
1
University of British Columbia: cIRcle - UBC's Information Repository
1
University of New Hampshire: Scholars Repository
1
University of Toronto: Research Repository T-Space
1
University of Victoria (Canada): UVicDSpace
1
Université de Bretagne Occidentale: HAL
1
Université de Genève: Archive ouverte UNIGE
1
Université de Nantes: HAL-UNIV-NANTES
1
Uppsala University: Publications (DiVA)
1
W&M ScholarWorks
1
WBI Studies Repository (WellBeing International)
1
Wiley Online Library
1
eCite UTAS (University of Tasmania)
1
Érudit.org (Université Montréal)
1