Content Provider
University of Massachusetts: ScholarWorks@UMass Amherst
21
DataCite Metadata Store (German National Library of Science and Technology)
4
Directory of Open Access Journals: DOAJ Articles
4
University of Iceland: Peer Reviewed Journals
4
MDPI Open Access Publishing
3
Wageningen UR (University & Research Centre): Digital Library
3
Charles University CU Digital repository
2
Lund University Publications Student Papers (LUP-SP)
2
Tomas Bata University Zlín: TBU DSpace
2
Umeå University: Publications (DiVA)
2
University of California: eScholarship
2
Unknown
2
Bucknell University: Bucknell Digital Commons
1
EconStor (German National Library of Economics, ZBW)
1
Journal of Ecosystems and Management (JEM)
1
LUTPub (LUT University)
1
Opin vísindi (Iceland)
1
PRISM - University of Calgary Digital Repository
1
Stellenbosch University: SUNScholar Research Repository
1
The University of Milan: Archivio Istituzionale della Ricerca (AIR)
1
University of Alaska: ScholarWorks@UA
1
University of Bergen: Bergen Open Research Archive (BORA-UiB)
1
University of Wollongong, Australia: Research Online
1
Washington State University: WSU Libraries Digital Collections
1
Waterloo Library Journal Publishing Service (University of Waterloo, Canada)
1