Content Provider
DataCite Metadata Store (German National Library of Science and Technology)
1
HELDA – University of Helsinki Open Repository
1
Hokkaido University Collection of Scholarly and Academic Papers (HUSCAP)
1
Pensoft Publishers
1
Stockholm University: Publications (DiVA)
1
Vrije Universiteit Amsterdam (VU): Research Portal
1
Zenodo
1
ediss.sub.hamburg (Staats- und Universitätsbibliothek Hamburg, Carl von Ossietzky)
1