Content Provider
LeibnizOpen (The Leibniz Association)
40
DataCite Metadata Store (German National Library of Science and Technology)
6
Unknown
4
Copernicus Publications: E-Journals
2
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
1
Institut national des sciences de l'Univers: HAL-INSU
1
KITopen (Karlsruhe Institute of Technologie)
1
Niedersächsisches Online-Archiv NOA
1
PANGAEA - Data Publisher for Earth & Environmental Science
1
Université de Nantes: HAL-UNIV-NANTES
1