Content Provider
Journals at the University of Arizona
5
National Research Council Canada: NRC Publications Archive
5
DataCite Metadata Store (German National Library of Science and Technology)
4
University of Calgary Journal Hosting
2
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
1
BioMed Central
1
Caltech Authors (California Institute of Technology)
1
Canadian Science Publishing
1
HAL Univ-Eiffel (Université Gustave Eiffel)
1
ScienceDirect (Elsevier - via Crossref)
1
University of Groningen research database
1