Content Provider
Media SuUB Bremen (Staats- und Universitätsbibliothek Bremen)
13
University of Zurich (UZH): ZORA (Zurich Open Repository and Archive
4
BORIS (Bern Open Repository and Information System, University of Bern)
1
DataCite Metadata Store (German National Library of Science and Technology)
1
University of Cumbria: Insight
1