Content Provider
University of North Texas: UNT Digital Library
43
DataCite Metadata Store (German National Library of Science and Technology)
6
Washington State University: WSU Libraries Digital Collections
5
Unknown
3
OLAC: Open Language Archives Community
1
University of Alberta: Era - Education and Research Archive
1
University of British Columbia: cIRcle - UBC's Information Repository
1
University of Montana: ScholarWorks
1
University of Washington, Seattle: Digital Collections
1
Zenodo
1
Érudit.org (Université Montréal)
1