Content Provider
DataCite Metadata Store (German National Library of Science and Technology)
2
Directory of Open Access Journals: DOAJ Articles
1
MDPI Open Access Publishing
1
National Institute of Polar Research Repository, Japan
1
OPUS - Publication Server of the University of Stuttgart
1
Université de Lorraine: PETALE (Publications Et Travaux Académiques de LorrainE)
1
Zenodo
1