Content Provider
LeibnizOpen (The Leibniz Association)
23
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center)
3
Unknown
3
Copernicus Publications: E-Journals
2
DataCite Metadata Store (German National Library of Science and Technology)
2
Niedersächsisches Online-Archiv NOA
2
PANGAEA - Data Publisher for Earth & Environmental Science
2
DataCite
1
Renate - Repositorium für Naturwissenschaften und Technik (TIB Hannover)
1