Content Provider
DataCite Metadata Store (German National Library of Science and Technology)
1,835
Zenodo
5
Directory of Open Access Journals: DOAJ Articles
3
Magnolia press
2
Wiley Online Library
2
ArXiv.org (Cornell University Library)
1
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
David Rumsey Historical Map Collection (Cartography Associates)
1
Earth-Prints (Istituto Nazionale di Geofisica e Vulcanologia)
1
Frontiers (Publisher)
1
National Institute of Oceanography, India: Digital Repository Service (DRS@nio)
1
Portail HAL Institut Agro
1
PubMed Central (PMC)
1
Sapienza Università di Roma: CINECA IRIS
1
The Royal Society
1
The University of Queensland: UQ eSpace
1
University of Portsmouth: Portsmouth Research Portal
1
Université de Nantes: HAL-UNIV-NANTES
1