Content Provider
NOAA NCEI Environmental Data Archive (via DataONE)
443
DataCite Metadata Store (German National Library of Science and Technology)
29
Canadian Science Publishing (via Crossref)
1
CyberLeninka (Scientific Electronic Library)
1
Digital.CSIC (Spanish National Research Council)
1
Directory of Open Access Journals: DOAJ Articles
1
Instituto Español de Oceanografía: e-IEO
1
ScholarsArchive@OSU (Oregon State University)
1
Universitet i Oslo: Digitale utgivelser ved UiO (DUO)
1
University of British Columbia: cIRcle - UBC's Information Repository
1