Content Provider
LeibnizOpen (The Leibniz Association)
59
Unknown
10
HELDA – University of Helsinki Open Repository
4
Renate - Repositorium für Naturwissenschaften und Technik (TIB Hannover)
3
National University of Ireland (NUI), Galway: ARAN
2
Utrecht University Repository
2
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
1
DataCite Metadata Store (German National Library of Science and Technology)
1
ETH Zürich Research Collection
1
Forschungszentrum Jülich: JuSER (Juelich Shared Electronic Resources)
1
HAL Clermont Auvergne (Université Blaise Pascal Clermont-Ferrand/Université d'Auvergne)
1
Institut national des sciences de l'Univers: HAL-INSU
1
Lund University Publications (LUP)
1
Niedersächsisches Online-Archiv NOA
1
Springer Nature (via Crossref)
1
University of Basel: edoc
1