Content Provider
Ghent University Academic Bibliography
13
KITopen (Karlsruhe Institute of Technologie)
11
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
5
DESY Publication Database (PUBDB)
5
Université de Nantes: HAL-UNIV-NANTES
4
Uppsala University: Publications (DiVA)
4
DataCite Metadata Store (German National Library of Science and Technology)
3
Unknown
3
OPUS FAU - Online publication system of Friedrich-Alexander-Universität Erlangen-Nürnberg
2
Open-Access-Publikationsserver der Humboldt-Universität: edoc-Server
2
DSpace@MIT (Massachusetts Institute of Technology)
1
RWTH Aachen University: RWTH Publications
1
Università degli Studi di Bari Aldo Moro: CINECA IRIS
1