Content Provider
York University, Toronto: YorkSpace
13
University of Rochester, New York: UR Research
11
Hathi Trust Digital Library
9
Baylor University Libraries Digital Collections
7
University of Washington, Seattle: Digital Collections
6
De Montfort University, Leicester: Open Research Archive (DORA)
5
Indiana University Libraries Digital Projects & Services
5
Arizona State University: ASU Digital Repository
4
Digitized @ Henry Madden Library (FresnoState)
2
University of Alabama Libraries: Acumen
2
University of Michigan: Digital Collections
2
Doria (National Library of Finland)
1
Gallica - bibliothèque numérique de la Bibliothèque nationale de France (BnF)
1
Pomeranian Library of Szczecin: Digital Library
1