Content Provider
LeibnizOpen (The Leibniz Association)
20
Directory of Open Access Journals: DOAJ Articles
10
Unknown
10
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
6
DataCite Metadata Store (German National Library of Science and Technology)
6
DIAL@USL-B (Université Saint-Louis, Bruxelles)
5
PubMed Central (PMC)
5
Flanders Marine Institute (VLIZ): Open Marine Archive (OMA)
4
Natural Environment Research Council: NERC Open Research Archive
4
University of Groningen research database
4
Université de Nantes: HAL-UNIV-NANTES
4
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer)
3
eCite UTAS (University of Tasmania)
3
HighWire Press (Stanford University)
2
Institut national des sciences de l'Univers: HAL-INSU
2
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel)
2
PANGAEA - Data Publisher for Earth & Environmental Science
2
Pensoft Publishers
2
University of Cape Town: OpenUCT
2
University of Illinois at Urbana-Champaign: IDEALS (Illinois Digital Environment for Access to Learning and Scholarship)
2
Aix-Marseille Université: HAL
1
CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas)
1
Copernicus Publications: E-Journals
1
DataCat: The Research Data Catalogue (University of Liverpool)
1
Earth-Prints (Istituto Nazionale di Geofisica e Vulcanologia)
1
Griffith University: Griffith Research Online
1
HELDA – University of Helsinki Open Repository
1
MDPI Open Access Publishing
1
Magnolia press
1
Muséum National d'Histoire Naturelle (MNHM): HAL
1
Normandie Université: HAL
1
PUBLISSO Fachrepositorium Lebenswissenschaften (ZB MED)
1
Portail HAL-ANR (Agence Nationale de la Recherche)
1
Sapienza Università di Roma: CINECA IRIS
1
Universidade de Coimbra: Estudo Geral
1
University College London: UCL Discovery
1
University of California: eScholarship
1
University of Canterbury, Christchurch: UC Research Repository
1
University of Tasmania: UTas ePrints
1
Università degli Studi di Genova: CINECA IRIS
1
Université de Bourgogne (UB): HAL
1
Université de Bretagne Occidentale: HAL
1
Université des Antilles (UAG): HAL
1
Wageningen UR (University & Research Centre): Digital Library
1
Western Washington University: CEDAR (Contributing to Education through Digital Access to Research)
1
Wiley Online Library (via Crossref)
1