Content Provider
LeibnizOpen (The Leibniz Association)
19
DataCite Metadata Store (German National Library of Science and Technology)
4
Unknown
2
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center)
1
KITopen (Karlsruhe Institute of Technologie)
1
Renate - Repositorium für Naturwissenschaften und Technik (TIB Hannover)
1
Woods Hole Scientific Community: WHOAS (Woods Hole Open Access Server)
1