Content Provider
DataCite Metadata Store (German National Library of Science and Technology)
4,005
Unknown
9
NOAA NCEI Environmental Data Archive (via DataONE)
5
The University of Utah: J. Willard Marriott Digital Library
3
Cambridge University Press
2
The University of Brighton Research Portal
2
Aarhus University: Research
1
Arca (BC's Digital Treasures)
1
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
1
Cambridge University Press (via Crossref)
1
Directory of Open Access Journals: DOAJ Articles
1
Dryad Digital Repository (Duke University)
1
Institut national des sciences de l'Univers: HAL-INSU
1
International Development Research Centre: IDRC Digital Library
1
Polar Research (E-Journal)
1
The Humane Society of the United States, Institute for Science and Policy: Animal Studies Repository
1
USGS Science Data Catalog (via DataONE)
1
Universidade Estadual Paulista São Paulo: Repositório Institucional UNESP
1
University of California: eScholarship
1
University of Cape Town: OpenUCT
1
University of Lethbridge Digitized Collections
1
Université de Nantes: HAL-UNIV-NANTES
1
WBI Studies Repository (WellBeing International)
1
Zenodo
1