Content Provider
DataCite Metadata Store (German National Library of Science and Technology)
165
Zenodo
55
Stellenbosch University: SUNScholar Research Repository
8
Magnolia press
2
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
1
DataCite
1
Directory of Open Access Journals: DOAJ Articles
1
Unknown
1