Content Provider
DataCite Metadata Store (German National Library of Science and Technology)
22
Zenodo
15
PANGAEA - Data Publisher for Earth & Environmental Science
2
Biodiversity Heritage Library (BHL)
1
CONICET Digital (Consejo Nacional de Investigaciones CientÃficas y Técnicas)
1
Ghent University Academic Bibliography
1
PubMed Central (PMC)
1
Publication Server of Goethe University Frankfurt am Main
1
Springer Nature (via Crossref)
1