Content Provider
DataCite Metadata Store (German National Library of Science and Technology)
82
ESS-DIVE: Deep Insight for Earth Science Data (via DataONE)
57
Defense Technical Information Center: DTIC Technical Reports database
30
Arctic Data Center (via DataONE)
11
DataCite
10
International Arctic Research Center (IARC) Data Archive (via DataONE)
7
University of Washington, Seattle: Digital Collections
5
Ball State University: Digital Media Repository
1
CDC Stacks (Centers for Disease Control and Prevention)
1
Dalhousie University: DalSpace Institutional Repository
1
Directory of Open Access Journals: DOAJ Articles
1
FHSU Scholars Repository (Fort Hays State University)
1
MDPI Open Access Publishing
1
North Dakota State University (NDSU) Digital Repository
1
ORNL DAAC (via DataONE)
1
University of California: eScholarship
1
University of Colorado, Boulder: CU Scholar
1