Content Provider
Natural Environment Research Council: NERC Open Research Archive
11
Australian National University: ANU Digital Collections
7
Directory of Open Access Journals: DOAJ Articles
5
Cambridge University Press
4
Imperial College London: Spiral
4
Unknown
4
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center)
3
Columbia University: Academic Commons
3
DataCite Metadata Store (German National Library of Science and Technology)
3
Niedersächsisches Online-Archiv NOA
3
University of California: eScholarship
3
Université de Bourgogne (UB): HAL
3
Université de Nantes: HAL-UNIV-NANTES
3
Wiley Online Library (via Crossref)
3
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
2
Caltech Authors (California Institute of Technology)
2
Curtin University: espace
2
Digital.CSIC (Spanish National Research Council)
2
Flanders Marine Institute (VLIZ): Open Marine Archive (OMA)
2
Informa (via Crossref)
2
Kazan Federal University Digital Repository
2
NORA (National aggregator of open repositories of Russian universities)
2
The University of Waikato: Research Commons
2
AAAS Resource Center (American Association for the Advancement of Science)
1
BORIS (Bern Open Repository and Information System, University of Bern)
1
Biblioteca Digital de Periódicos da UFPR (Universidade Federal do Paraná)
1
CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas)
1
DI-fusion : dépôt institutionnel de l'Université libre de Bruxelles (ULB)
1
DIGIBUG: Repositorio Institucional de la Universidad de Granada
1
De Gruyter (via Crossref)
1
Magnolia press
1
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel)
1
Swedish Museum of Natural History: Publications (DiVA)
1
The University of Queensland: UQ eSpace
1
University College London: UCL Discovery
1
University of Potsdam: publish.UP
1
University of St Andrews: Research Portal
1
University of Waterloo, Canada: Institutional Repository
1
Utrecht University Repository
1
Wiley Online Library
1
Zenodo
1