Content Provider
DataCite Metadata Store (German National Library of Science and Technology)
9
PANGAEA - Data Publisher for Earth & Environmental Science
8
Directory of Open Access Journals: DOAJ Articles
4
Cambridge University Press
3
MDPI Open Access Publishing
2
Apollo - University of Cambridge Repository
1
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
1
Archives ouvertes de Paris-Saclay
1
HAL Sorbonne Université
1
HAL-CEA (Commissariat à l'énergie atomique et aux énergies alternatives)
1
LaCRIS - University of Lapland Current Research System
1
Météo-France: HAL
1
PeerJ Publishing
1
Peoples' Friendship University of Russia (RUDN): Open repository
1
PubMed Central (PMC)
1
Springer Nature (via Crossref)
1
Tomsk State University Research Library
1
University of Tartu: ojs.utlib.ee
1
University of Tromsø: Munin Open Research Archive
1
Université de Nantes: HAL-UNIV-NANTES
1
Unknown
1
Wageningen UR (University & Research Centre): Digital Library
1