Content Provider
DataCite Metadata Store (German National Library of Science and Technology)
3,342
Oxford University Press
30
Oxford University Press (via Crossref)
23
Ghent University Academic Bibliography
20
Unknown
7
Zenodo
4
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer)
3
Naturalis Digital Academic Repository (National Museum of Natural History in the Netherlands)
3
Digital.CSIC (Spanish National Research Council)
2
Instituto Español de Oceanografía: e-IEO
2
Natural Environment Research Council: NERC Open Research Archive
2
University of St Andrews: Digital Research Repository
2
University of Tasmania: UTas ePrints
2
eCite UTAS (University of Tasmania)
2
Canadian Center of Science and Education: CCSE Journal Online
1
City University of New York: CUNY Academic Works
1
Directory of Open Access Journals: DOAJ Articles
1
Frontiers (Publisher)
1
Frontiers: Figshare
1
Heriot-Watt University, Edinburgh: ROS - The Research Output Service
1
KU Leuven: Lirias
1
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel)
1
Padua Research Archive (IRIS - Università degli Studi di Padova)
1
PubMed Central (PMC)
1
RePEc (Research Papers in Economics)
1
TÜBİTAK Academic Journals
1
University of Southampton: e-Prints Soton
1
University of Sunderland: SUnderland REpository (SURE)
1