Content Provider
DataCite Metadata Store (German National Library of Science and Technology)
9
Directory of Open Access Journals: DOAJ Articles
6
The University of Queensland: UQ eSpace
4
University of St Andrews: Digital Research Repository
4
University of St Andrews: Research Portal
4
Unknown
4
The Royal Society: Figshare
3
CyberLeninka (Scientific Electronic Library)
2
Dryad Digital Repository (Duke University)
2
Memorial University of Newfoundland: Digital Archives Initiative (DAI)
2
PubMed Central (PMC)
2
The Royal Society
2
University of California: eScholarship
2
University of New Brunswick: Centre for Digital Scholarship Journals
2
AAAS Resource Center (American Association for the Advancement of Science - via Crossref)
1
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer)
1
Cambridge University Press
1
Cambridge University Press (via Crossref)
1
DRDO Publications (Online Publishing @ DESIDOC - Defence Research & Development Organization, India)
1
Data Archiving and Networked Services (DANS): EASY (KNAW - Koninklijke Nederlandse Akademie van Wetenschappen)
1
Digital Repository of Scientific Institutes (RCIN)
1
Hunter Library Digital Collections (Western Carolina University)
1
IMHE OpenIR (Institute of Mountain Hazards and Environment, Chinese Academy of Sciences)
1
IRD (Institute de recherche pour le développement): Horizon
1
Instituto Universitário de Ciências Psicológicas, Sociais e da Vida: Repositório do ISPA
1
IssueLab (Nonprofit Research)
1
Journals of Faculty of Arts, University of Ljubljana
1
Journals@UIC (The University of Illinois at Chicago)
1
OpenEdition
1
Princeton University Press (via Crossref)
1
University of Bergen: Bergen Open Research Archive (BORA-UiB)
1
University of New England: DUNE (DigitalUNE)
1
University of Toronto Press (U Toronto Press - via Crossref)
1
University of Tyumen: UTMN Repository
1
University of Wollongong, Australia: Research Online
1
Wiley Online Library
1
Zenodo
1