Content Provider
DataCite Metadata Store (German National Library of Science and Technology)
8
University of Calgary Journal Hosting
6
PANGAEA - Data Publisher for Earth & Environmental Science
4
Unknown
4
Defense Technical Information Center: DTIC Technical Reports database
1
HighWire Press (Stanford University)
1
Magnolia press
1
Memorial University of Newfoundland: Digital Archives Initiative (DAI)
1
Theses Canada/Thèses Canada (Library and Archives Canada)
1
University of Waterloo, Canada: Institutional Repository
1