Content Provider
Media SuUB Bremen (Staats- und Universitätsbibliothek Bremen)
3
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
Digital Commons University of South Florida (USF)
1
Padua Research Archive (IRIS - Università degli Studi di Padova)
1
SEALS Digital Commons (South East Academic Libraries System, South Africa)
1
UNSW Sydney (The University of New South Wales): UNSWorks
1
University of California: eScholarship
1
University of South Florida St. Petersburg: Digital USFSP
1
Università degli Studi di Genova: CINECA IRIS
1
Université de Paris: Portail HAL
1
Victoria University of Wellington: ResearchArchive
1