Content Provider
Kazan Federal University Digital Repository
20
NORA (National aggregator of open repositories of Russian universities)
20
DataCite Metadata Store (German National Library of Science and Technology)
10
Lund University Publications (LUP)
6
University of Bergen: Bergen Open Research Archive (BORA-UiB)
5
Biblioteca Digital FCEN-UBA (Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires)
4
University College London: UCL Discovery
4
Unknown
4
Aarhus University: Research
2
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
2
The University of Queensland: UQ eSpace
2
Utrecht University Repository
2
Australian National University: ANU Digital Collections
1
CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas)
1
Caltech Authors (California Institute of Technology)
1
Digital.CSIC (Spanish National Research Council)
1
Directory of Open Access Journals: DOAJ Articles
1
Ghent University Academic Bibliography
1
HELDA – University of Helsinki Open Repository
1
Magnolia press
1
PANGAEA - Data Publisher for Earth & Environmental Science
1
Queen's University, Ontario: QSpace
1
The University of Western Ontario: Scholarship@Western
1
Theses Canada/Thèses Canada (Library and Archives Canada)
1
Universidad de Las Palmas de Gran Canaria: Acceda
1
University of St Andrews: Digital Research Repository
1
University of St Andrews: Research Portal
1
University of Stirling: Stirling Digital Research Repository
1
Université Toulouse 2 - Jean Jaurès: HAL
1
Université de Franche-Comté (UFC): HAL
1
Université de Montréal (UdeM): Papyrus
1
Université de Nantes: HAL-UNIV-NANTES
1
Uppsala University: Publications (DiVA)
1