Content Provider
Media SuUB Bremen (Staats- und Universitätsbibliothek Bremen)
8
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
1
DataCite Metadata Store (German National Library of Science and Technology)
1
Helsingfors Universitet: HELDA – Helsingin yliopiston digitaalinen arkisto
1
MSpace at the University of Manitoba
1
University of Bergen: Bergen Open Research Archive (BORA-UiB)
1
University of Maryland: Digital Repository (DRUM)
1