Content Provider
Directory of Open Access Journals: DOAJ Articles
2
Theses Canada/Thèses Canada (Library and Archives Canada)
2
University of British Columbia: cIRcle - UBC's Information Repository
2
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
Defense Technical Information Center: DTIC Technical Reports database
1
Institut national des sciences de l'Univers: HAL-INSU
1
MDPI Open Access Publishing
1
Natural Environment Research Council: NERC Open Research Archive
1
Oxford University Press
1
SINTEF Open (Brage)
1
University of Southampton: e-Prints Soton
1
Université de Nantes: HAL-UNIV-NANTES
1