Content Provider
University of North Texas: UNT Digital Library
83
USGS Science Data Catalog (via DataONE)
63
DataCite Metadata Store (German National Library of Science and Technology)
7
Dryad Digital Repository (Duke University)
6
SciTec Connect (Office of Scientific and Technical Information - OSTI, U.S. Department of Energy)
5
NOAA NCEI Environmental Data Archive (via DataONE)
4
PANGAEA - Data Publisher for Earth & Environmental Science
3
DataCite
2
Hathi Trust Digital Library
2
Defense Technical Information Center: DTIC Technical Reports database
1
Directory of Open Access Journals: DOAJ Articles
1
ESS-DIVE: Deep Insight for Earth Science Data (via DataONE)
1
Hokkaido University Collection of Scholarly and Academic Papers (HUSCAP)
1
Knowledge Network for Biocomplexity (via DataONE)
1
The Portal to Texas History (University of North Texas)
1
Utah State University: DigitalCommons@USU
1