Content Provider
Niedersächsisches Online-Archiv NOA
1,071
OpenAgrar (OA)
24
LeibnizOpen (The Leibniz Association)
22
Australian National University: ANU Digital Collections
17
MACAU: Open Access Repository of Kiel University
9
eKMAIR (Electronic Kyiv-Mohyla Academy Institutional Repository)
9
Stellenbosch University: SUNScholar Research Repository
7
Digital Library Thüringen
5
Unknown
3
Biblioteca Digital FCEN-UBA (Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires)
2
National Technical University of Athens (NTUA): DSpace
2
National University of Singapore: ScholarBank@NUS
2
Repositorio Digital Institucional - Universidad de Buenos Aires (RDI UBA)
2
Renate - Repositorium für Naturwissenschaften und Technik (TIB Hannover)
1
TU Delft: Institutional Repository (Delft University of Technology)
1