Content Provider
Columbia University: Academic Commons
8
DataCite Metadata Store (German National Library of Science and Technology)
8
Rice University: Digital Scholarship Archive
2
ScienceDirect (Elsevier)
2
University of California: eScholarship
2
Utrecht University Repository
2
Caltech Authors (California Institute of Technology)
1
ScienceDirect (Elsevier - via Crossref)
1
Springer Nature (via Crossref)
1
eCite UTAS (University of Tasmania)
1