Content Provider
DataCite Metadata Store (German National Library of Science and Technology)
20
PANGAEA - Data Publisher for Earth & Environmental Science
17
NOAA NCEI Environmental Data Archive (via DataONE)
13
Defense Technical Information Center: DTIC Technical Reports database
11
Directory of Open Access Journals: DOAJ Articles
4
Arctic Data Center (via DataONE)
2
MDPI Open Access Publishing
2
Unknown
2
Dryad Digital Repository (Duke University)
1
ETH Zürich Research Collection
1
IRIS Università degli Studi di Bologna (CRIS - Current Research Information System)
1
Institute of Oceanology, Chinese Academy of Sciences: IOCAS-IR
1
PUBLISSO Fachrepositorium Lebenswissenschaften (ZB MED)
1
UNESDOC - UNESCO Digital Library
1
Universidade do Algarve: Sapienta
1
University of Stavanger: UiS Brage
1
University of Victoria (Canada): UVicDSpace
1
theses.fr
1