Content Provider
DataCite Metadata Store (German National Library of Science and Technology)
925
Dryad Digital Repository (Duke University)
7
Unknown
4
Directory of Open Access Journals: DOAJ Articles
3
Aarhus University: Research
2
Helsingfors Universitet: HELDA – Helsingin yliopiston digitaalinen arkisto
2
Institut national de la recherche scientifique, Québec: Espace INRS
2
Madagascar Conservation & Development (E-Journal)
2
University of Copenhagen: Research
2
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
1
Frontiers: Figshare
1
HAL Lyon 1 (University Claude Bernard Lyon 1)
1
Jultika - University of Oulu repository
1
MDPI Open Access Publishing
1
National Research Council Canada: NRC Publications Archive
1
UNEP Document Repository (UN Environment Programme)
1
University of Gothenburg: GUPEA (Gothenburg University Publications Electronic Archive)
1
Université de Lyon: HAL
1
Université de Nantes: HAL-UNIV-NANTES
1