Content Provider
Directory of Open Access Journals: DOAJ Articles
6
CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas)
4
Unknown
4
DataCite Metadata Store (German National Library of Science and Technology)
3
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
2
PubMed Central (PMC)
2
Universidad Nacional de La Plata (UNLP): SeDiCI (Servicio de Difusión de la Creación Intelectual)
2
Arctic Portal Library
1
Docta Complutense (Universidad Complutense de Madrid - UCM)
1
Dokuz Eylül University Research Information System
1
GEO-LEOe-docs (FID GEO)
1
HAL Sorbonne Université
1
HAL Univ-Eiffel (Université Gustave Eiffel)
1
IODE-UNESCO: OceanDocs - E-Repository of Ocean Publications
1
NTNU Open Archive (Norwegian University of Science and Technology)
1
National Institute of Polar Research Repository, Japan
1
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel)
1
Polar Research
1
Springer Nature (via Crossref)
1
Universidad de Chile: Repositorio académico
1
University of St Andrews: Digital Research Repository
1
University of St Andrews: Research Portal
1
Université de Nantes: HAL-UNIV-NANTES
1