Content Provider
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
16
Université de Nantes: HAL-UNIV-NANTES
15
CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas)
4
Copernicus Publications: E-Journals
2
Unknown
2
DataCite Metadata Store (German National Library of Science and Technology)
1
Natural Environment Research Council: NERC Open Research Archive
1
Niedersächsisches Online-Archiv NOA
1