Content Provider
DataCite Metadata Store (German National Library of Science and Technology)
35
PANGAEA - Data Publisher for Earth & Environmental Science
24
Directory of Open Access Journals: DOAJ Articles
20
LeibnizOpen (The Leibniz Association)
20
Unknown
6
Zenodo
6
University of Tasmania: UTas ePrints
5
Ghent University Academic Bibliography
4
Magnolia press
4
Scientia Marina (E-Journal)
4
Digital.CSIC (Spanish National Research Council)
3
MDPI Open Access Publishing
3
National Institute of Polar Research Repository, Japan
3
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
2
CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas)
2
Masaryk University Journals
2
Media SuUB Bremen (Staats- und Universitätsbibliothek Bremen)
2
SciELO Brazil (Scientific Electronic Library Online)
2
University of Groningen research database
2
University of St Andrews: Research Portal
2
Université de Nantes: HAL-UNIV-NANTES
2
Apollo - University of Cambridge Repository
1
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer)
1
DIAL@USL-B (Université Saint-Louis, Bruxelles)
1
Digital Repository of Scientific Institutes (RCIN)
1
HAL - Université de La Rochelle
1
Instituto Español de Oceanografía: e-IEO
1
Jagiellonian University Repository
1
Lund University Publications (LUP)
1
PUB - Publications at Bielefeld University
1
PUBLISSO Fachrepositorium Lebenswissenschaften (ZB MED)
1
Pensoft Publishers
1
RI FURG (Repositório da Universidade Federal do Rio Grande)
1
RUA - Repositorio Institucional de la Universidad de Alicante
1
Revistas Electronicas UACh en Texto Completo (Universidad Austral de Chile)
1
ScholarSpace at University of Hawaii at Manoa
1
The University of Manchester: Research Explorer
1
Universidad Nacional de La Plata (UNLP): SeDiCI (Servicio de Difusión de la Creación Intelectual)
1
Universidade de Coimbra: Estudo Geral
1
University of Cape Town: OpenUCT
1
University of St Andrews: Digital Research Repository
1
University of the Highlands and Islands: Research Database of UHI
1
Via Medica Journals
1
idUS - Deposito de Investigación Universidad de Sevilla
1