Content Provider
Natural Environment Research Council: NERC Open Research Archive
219
Directory of Open Access Journals: DOAJ Articles
86
Frontiers: Figshare
51
University of Michigan: Digital Collections
7
Biodiversity Heritage Library (BHL)
6
Unknown
6
DataCite Metadata Store (German National Library of Science and Technology)
4
Lund University Publications (LUP)
4
TÜBİTAK Academic Journals
3
Plymouth Marine Science Electronic Archive (PlyMSEA - Plymouth Marine Laboratory, PML)
2
Bavarian Digital Repository (BDR - Bayerische Staatsbibliothek Munich, BSB)
1
Claremont Colleges: Scholarship@Claremont
1
DIAL@USL-B (Université Saint-Louis, Bruxelles)
1
Hathi Trust Digital Library
1
Monash University: Figshare
1
Research from Macquarie University
1
SciELO Brazil (Scientific Electronic Library Online)
1
The University of Kansas: KU ScholarWorks
1
University of Calgary Journal Hosting
1
University of Michigan: Deep Blue
1
Zenodo
1