Content Provider
DataCite Metadata Store (German National Library of Science and Technology)
77
Zenodo
17
Directory of Open Access Journals: DOAJ Articles
10
Federation of Finnish Learned Societies: Scientific Journals Online
7
CyberLeninka (Scientific Electronic Library)
6
HELDA – University of Helsinki Open Repository
6
Unknown
6
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
4
IODE-UNESCO: OceanDocs - E-Repository of Ocean Publications
4
University of California: eScholarship
4
Institut national des sciences de l'Univers: HAL-INSU
3
Ural Federal University (URFU): ELAR
3
Australian National University: ANU Digital Collections
2
BIROn - Birkbeck Institutional Research Online (Birkbeck University of London)
1
Belarusian State University: Electronic Library BSU
1
BioMed Central
1
Cambridge University Press
1
Copernicus Publications: E-Journals
1
DI-fusion : dépôt institutionnel de l'Université libre de Bruxelles (ULB)
1
Digital Repository of Scientific Institutes (RCIN)
1
Directory of Open Access Books (DOAB)
1
Emerald (via Crossref)
1
Geological Quarterly
1
HAL Sorbonne Université
1
Helsingfors Universitet: HELDA – Helsingin yliopiston digitaalinen arkisto
1
IRD (Institute de recherche pour le développement): Horizon
1
International Association of Aquatic and Marine Science Libraries and Information Centers (IAMSLIC): Aquatic Commons
1
Jultika - University of Oulu repository
1
LAEI VL (Lithuanian Institute of Agrarian Economics Virtual Library)
1
LSRC VL (Lithuanian Social Research Centre Virtual Library)
1
MDPI Open Access Publishing
1
Météo-France: HAL
1
Niedersächsisches Online-Archiv NOA
1
ORA - Oxford University Research Archive
1
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel)
1
Open Research Library
1
Peking University Institutional Repository (PKU IR)
1
Pensoft Publishers
1
ScienceDirect (Elsevier - via Crossref)
1
ScienceDirect (Elsevier)
1
Technical University of Denmark: DTU Orbit
1
Umeå University: Publications (DiVA)
1
University of Copenhagen: Research
1
Université Toulouse III - Paul Sabatier: HAL-UPS
1
Université de Lorraine: HAL
1
Université de Nantes: HAL-UNIV-NANTES
1
Université de Paris: Portail HAL
1