Content Provider
Cologne University: KUPS
1
DataCite Metadata Store (German National Library of Science and Technology)
1
Digital Library Thüringen
1
Directory of Open Access Journals: DOAJ Articles
1
FIRe! - Publikationsserver des FIZBw (Fachinformationszentrum der Bundeswehr)
1
German Aerospace Center: elib - DLR electronic library
1
Hereon Publications (Helmholtz-Zentrum)
1
University of Potsdam: publish.UP
1
ediss.sub.hamburg (Staats- und Universitätsbibliothek Hamburg, Carl von Ossietzky)
1