Content Provider
KITopen (Karlsruhe Institute of Technologie)
28
Curtin University: espace
18
Ghent University Academic Bibliography
16
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
6
DESY Publication Database (PUBDB)
5
Université de Nantes: HAL-UNIV-NANTES
5
Max Planck Society: MPG.PuRe
4
Uppsala University: Publications (DiVA)
4
DataCite Metadata Store (German National Library of Science and Technology)
3
IOP Publishing (via Crossref)
3
OPUS FAU - Online publication system of Friedrich-Alexander-Universität Erlangen-Nürnberg
3
Open-Access-Publikationsserver der Humboldt-Universität: edoc-Server
3
Unknown
3
Eldorado - Repositorium der TU Dortmund
2
Radboud University: DSpace
2
ScienceDirect (Elsevier - via Crossref)
2
ScienceDirect (Elsevier)
2
DI-fusion : dépôt institutionnel de l'Université libre de Bruxelles (ULB)
1
DSpace@MIT (Massachusetts Institute of Technology)
1
IOP Publishing
1
RWTH Aachen University: RWTH Publications
1
Università degli Studi di Bari Aldo Moro: CINECA IRIS
1