Content Provider
DataCite Metadata Store (German National Library of Science and Technology)
22
University of Michigan: Digital Collections
12
Unknown
7
University of Lethbridge Digitized Collections
4
The University of Utah: J. Willard Marriott Digital Library
2
Theses Canada/Thèses Canada (Library and Archives Canada)
2
Zenodo
2
Dryad Digital Repository (Duke University)
1
University of British Columbia: cIRcle - UBC's Information Repository
1