Content Provider
DataCite Metadata Store (German National Library of Science and Technology)
5
Directory of Open Access Journals: DOAJ Articles
4
Discovery - University of Dundee Online Publications
2
E-resource repository of the University of Latvia
2
LAEI VL (Lithuanian Institute of Agrarian Economics Virtual Library)
2
LSRC VL (Lithuanian Social Research Centre Virtual Library)
2
Unknown
2
DataCite
1
Digital Repository of Scientific Institutes (RCIN)
1
Doria (National Library of Finland)
1
Lund University Publications (LUP)
1
OhioLINK: Ohio Digital Resource Commons (DRC)
1
PANGAEA - Data Publisher for Earth & Environmental Science
1
University of Stirling: Stirling Digital Research Repository
1
Vytautas Magnus University e-Publication Repository (VMU ePub)
1
Zenodo
1