Content Provider
Directory of Open Access Journals: DOAJ Articles
72
Cambridge University Press
34
ScienceDirect (Elsevier - via Crossref)
29
ScienceDirect (Elsevier)
6
Imperial College London: Spiral
5
Rice University: Digital Scholarship Archive
5
eCite UTAS (University of Tasmania)
3
DataCite Metadata Store (German National Library of Science and Technology)
2
Florida State University Digital Library (FSUDL)
2
Florida State University: DigiNole Commons
2
Nanjing Institute of Geology and Palaeontology: NIGPAS OpenIR (Chinese Academy of Sciences)
2
Digital Commons at Oberlin (Oberlin College)
1
Geological Society of London: Figshare
1
Istituto Nazionale di Fisica Nucleare (INFN): Open Access Repository
1
PUBLISSO Fachrepositorium Lebenswissenschaften (ZB MED)
1
Springer Nature (via Crossref)
1
University of Alabama Institutional Repository
1
University of California: eScholarship
1
University of Nebraska-Lincoln: DigitalCommons@UNL
1
University of Washington, Seattle: ResearchWorks
1
University of the Highlands and Islands: Research Database of UHI
1
Università Ca’ Foscari Venezia: ARCA (Archivio Istituzionale della Ricerca)
1