Content Provider
LeibnizOpen (The Leibniz Association)
21
Unknown
3
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center)
1
Cologne University: KUPS
1
DataCite Metadata Store (German National Library of Science and Technology)
1
KITopen (Karlsruhe Institute of Technologie)
1
Renate - Repositorium für Naturwissenschaften und Technik (TIB Hannover)
1