Content Provider
Unknown
7
University of Washington, Seattle: Digital Collections
5
Directory of Open Access Journals: DOAJ Articles
4
Creighton University: Creighton Digital Repository (CDR)
2
OpenEdition
2
Digital Repository of the University of Hawaii at Manoa
1
Phaidra Digital Collections (Permanent Hosting, Archiving and Indexing of Digital Resources and Assets - Università degli Studi di Padova)
1
The Library of Congress: American Memory
1
University of Miami: Digital Collections
1