Content Provider
DataCite Metadata Store (German National Library of Science and Technology)
768
NOAA NCEI Environmental Data Archive (via DataONE)
4
National Institute of Polar Research Repository, Japan
4
Directory of Open Access Journals: DOAJ Articles
3
Kyoto University Research Information Repository (KURENAI)
3
Unknown
2
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
1
Guangzhou Institute of Geochemistry: GIG OpenIR (Chinese Academy of Sciences)
1
Institut national des sciences de l'Univers: HAL-INSU
1
University of California: eScholarship
1
Université de Lorraine: HAL
1