Content Provider
DataCite Metadata Store (German National Library of Science and Technology)
32
LeibnizOpen (The Leibniz Association)
20
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer)
19
Directory of Open Access Journals: DOAJ Articles
18
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
16
Unknown
15
University of Tasmania: UTas ePrints
14
PANGAEA - Data Publisher for Earth & Environmental Science
13
Magnolia press
11
Université de Nantes: HAL-UNIV-NANTES
9
Woods Hole Scientific Community: WHOAS (Woods Hole Open Access Server)
9
Institut national des sciences de l'Univers: HAL-INSU
6
Media SuUB Bremen (Staats- und Universitätsbibliothek Bremen)
5
University of Groningen research database
5
Australian National University: ANU Digital Collections
4
Apollo - University of Cambridge Repository
3
DI-fusion : dépôt institutionnel de l'Université libre de Bruxelles (ULB)
3
Pensoft Publishers
3
UNSW Sydney (The University of New South Wales): UNSWorks
3
University of Pretoria: UPSpace
3
University of St Andrews: Research Portal
3
École Polytechnique, Université Paris-Saclay: HAL
3
Council for Scientific and Industrial Research (South Africa): CSIR Research Space
2
Digital Collections of Colorado (Colorado State University)
2
Digital.CSIC (Spanish National Research Council)
2
HAL - Université de La Rochelle
2
IODE-UNESCO: OceanDocs - E-Repository of Ocean Publications
2
MDPI Open Access Publishing
2
Mountain Scholar (Digital Collections of Colorado and Wyoming)
2
Padua Research Archive (IRIS - Università degli Studi di Padova)
2
Polar Research
2
Publication Server of the Justus-Liebig-University of Giessen
2
Stockholm University: Publications (DiVA)
2
The University of Milan: Archivio Istituzionale della Ricerca (AIR)
2
University College London: UCL Discovery
2
University of Bristol: Bristol Research
2
University of California: eScholarship
2
University of Otago: Research Archive (OUR Archive)
2
Università degli Studi di Milano-Bicocca: BOA (Bicocca Open Archive)
2
Université de Bretagne Occidentale: HAL
2
Biblioteca Digital FCEN-UBA (Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires)
1
BioMed Central
1
CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas)
1
DIAL@USL-B (Université Saint-Louis, Bruxelles)
1
DataSpace at Princeton University
1
Dyuthi - Digital Repository of Cochin University of Science and Technology (India)
1
ETH Zürich Research Collection
1
Earth-Prints (Istituto Nazionale di Geofisica e Vulcanologia)
1
GEO-LEOe-docs (FID GEO)
1
Ghent University Academic Bibliography
1
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