Content Provider
DataCite Metadata Store (German National Library of Science and Technology)
1
EconStor (German National Library of Economics, ZBW)
1
FWF-E-Book-Library (Austrian Science Fund) / Fonds zur Förderung der wissenschaftlichen Forschung
1
GEO-LEOe-docs (FID GEO)
1
pedocs document server (German Education Portal/DIPF)
1