Content Provider
University of Copenhagen: Research
23
DataCite Metadata Store (German National Library of Science and Technology)
14
WikiBooks - Open-content textbooks
5
Roskilde University Research Portal (RUC)
4
Aarhus University: OJS at The State and University Library
3
Aarhus University: Research
3
Tidsskrift.dk (The Royal Library, Denmark)
3
University of Southern Denmark Research Portal
3
Aalborg University's Research Portal
2
Biodiversity Heritage Library (BHL)
2
Directory of Open Access Journals: DOAJ Articles
1
Edinburgh University Press (via Crossref)
1
Jagiellonian University Repository
1
Lund University Publications Student Papers (LUP-SP)
1
ScienceDirect (Elsevier - via Crossref)
1
University of Oslo (UiO): FRITT (E-Journals)
1
University of South-Eastern Norway: USN Open Archive (Brage)
1
Unknown
1
Uppsala University: Publications (DiVA)
1
norden (Nordic Council of Ministers): Publications (DiVA)
1