Content Provider
LeibnizOpen (The Leibniz Association)
15
SSOAR - Social Science Open Access Repository
3
Unknown
3
da|ra - Registration agency for social and economic data
3
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
1
DIAL@USL-B (Université Saint-Louis, Bruxelles)
1
DataCite Metadata Store (German National Library of Science and Technology)
1
EconStor (German National Library of Economics, ZBW)
1
Universitet i Oslo: Digitale utgivelser ved UiO (DUO)
1
Université Paris Seine: ComUE (HAL)
1