Content Provider
Directory of Open Access Journals: DOAJ Articles
22
University of Calgary Journal Hosting
12
Unknown
10
DataCite Metadata Store (German National Library of Science and Technology)
7
MDPI Open Access Publishing
6
University of Victoria (Canada): UVicDSpace
4
Indiana University: Digital Library of the Commons (DLC)
3
National Research Council Canada: NRC Publications Archive
3
University of Saskatchewan: eCommons@USASK
3
Brock University Digital Repository
2
University of Waterloo, Canada: Institutional Repository
2
Aarhus University: Research
1
Defense Technical Information Center: DTIC Technical Reports database
1
Institut national de la recherche scientifique, Québec: Espace INRS
1
Institutional Repository of Leibniz Universität Hannover
1
Jultika - University of Oulu repository
1
Lund University Publications (LUP)
1
Repositorio Institucional de la UPCH (Universidad Peruana Cayetano Heredia)
1
TU Wien: reposiTUm
1
The University of Milan: Archivio Istituzionale della Ricerca (AIR)
1
Theses Canada/Thèses Canada (Library and Archives Canada)
1
University of Illinois at Urbana-Champaign: IDEALS (Illinois Digital Environment for Access to Learning and Scholarship)
1
University of Lethbridge Institutional Repository
1
University of St Andrews: Research Portal
1
University of Tromsø: Septentrio Academic Publishing
1
Università Politecnica delle Marche: IRIS
1
Wilfrid Laurier University, Ontario: Scholars Commons@Laurier
1
Zenodo
1