Content Provider
PANGAEA - Data Publisher for Earth & Environmental Science
371
Research Data Australia (Australian National Data Service - ANDS)
11
DataCite Metadata Store (German National Library of Science and Technology)
9
CESSDA DC Data Catalogue (Consortium of European Social Science Data Archives)
3
Defense Technical Information Center: DTIC Technical Reports database
3
Docta Complutense (Universidad Complutense de Madrid - UCM)
1
Dresden University of Technology: Qucosa
1
Old Dominion University: ODU Digital Commons
1
University of North Texas: UNT Digital Library
1
Unknown
1