Content Provider
ArXiv.org (Cornell University Library)
7
DataCite Metadata Store (German National Library of Science and Technology)
7
Cardiff University: ORCA (Online Research @ Cardiff)
5
Caltech Authors (California Institute of Technology)
3
Maynooth University ePrints and eTheses Archive (National University of Ireland)
3
The University of Manchester: Research Explorer
3
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
2
Harvard University: DASH - Digital Access to Scholarship at Harvard
2
SciTec Connect (Office of Scientific and Technical Information - OSTI, U.S. Department of Energy)
2
Université de Nantes: HAL-UNIV-NANTES
2