Content Provider
DataCite Metadata Store (German National Library of Science and Technology)
171,362
DataCite
44,106
NOAA NCEI Environmental Data Archive (via DataONE)
281
Environmental Data Initiative (via DataONE)
19
Zenodo
16
Digital.CSIC (Spanish National Research Council)
12
Directory of Open Access Journals: DOAJ Articles
7
Pensoft Publishers
7
University of California: eScholarship
4
Frontiers: Figshare
3
Altai State University: Scientific Journals of ASU
2
Unknown
2
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
1
Archivio della ricerca dell'Università di Modena e Reggio Emilia (Unimore: IRIS)
1
Dryad Digital Repository (Duke University)
1
HAL - Université de La Rochelle
1
Institut National de la Recherche Agronomique: ProdINRA
1
Swedish Museum of Natural History: Publications (DiVA)
1
Università degli Studi di Genova: CINECA IRIS
1