Content Provider
DataCite Metadata Store (German National Library of Science and Technology)
131
Zenodo
63
Directory of Open Access Journals: DOAJ Articles
10
The Royal Society: Figshare
6
ARPI - Archivio della Ricerca dell'Università di Pisa
5
University of California: eScholarship
4
Unknown
4
University of Otago: Research Archive (OUR Archive)
3
Woods Hole Scientific Community: WHOAS (Woods Hole Open Access Server)
3
Kyoto University Research Information Repository (KURENAI)
2
Oregon Digital (University of Oregon/Oregon State University)
2
University of Groningen research database
2
Whittier College: Poet Commons
2
Apollo - University of Cambridge Repository
1
Croatian Digital Theses Repository (National and University Library in Zagreb)
1
Dipòsit Digital de la Universitat de Barcelona
1
Dryad Digital Repository (Duke University)
1
Hokkaido University Collection of Scholarly and Academic Papers (HUSCAP)
1
IRIS Università degli Studi di Napoli Federico II
1
Imperial College London: Spiral
1
Lund University Publications (LUP)
1
MDPI Open Access Publishing
1
Monash University: Figshare
1
Montclair State University Digital Commons
1
Naval Postgraduate School: Calhoun
1
Old Dominion University: ODU Digital Commons
1
Smithsonian Institution: Figshare
1
University of Cape Town: OpenUCT
1
University of Copenhagen: Research
1
Università degli Studi di Milano-Bicocca: BOA (Bicocca Open Archive)
1