Content Provider
DataCite Metadata Store (German National Library of Science and Technology)
13
NOAA NCEI Environmental Data Archive (via DataONE)
4
Zenodo
4
Magnolia press
2
Unknown
2
Aarhus University: OJS at The State and University Library
1
Data Archiving and Networked Services (DANS): EASY (KNAW - Koninklijke Nederlandse Akademie van Wetenschappen)
1
Tidsskrift.dk (The Royal Library, Denmark)
1