Content Provider
DataCite Metadata Store (German National Library of Science and Technology)
21
WikiBooks - Open-content textbooks
11
Skemman (Iceland)
8
Arctic Council Repository
2
Digital Library of the Faculty of Arts, Masaryk University
2
Opin vísindi (Iceland)
2
UQAM - Université du Québec à Montréal: archipel
2
University of Iceland: Peer Reviewed Journals
2
Unknown
2
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe)
1
Archives ouvertes de Paris-Saclay
1
Cambridge University Press
1
Electrical Engineering and Power Engineering (EE&PE - E-Journal)
1
Hirsla - Landspítali University Hospital research archive
1
Høgskulen på Vestlandet: HVL Open
1
Jagiellonian University Repository
1
Jultika - University of Oulu repository
1
LaCRIS - University of Lapland Current Research System
1
Masaryk University Journals
1
NORA (National aggregator of open repositories of Russian universities)
1
Natural Resources Institute Finland: Jukuri
1
Oxford University Press (via Crossref)
1
Scientific Periodicals of Ukraine (Ukrainian Research and Academic Network)
1
Siberian Federal University: Archiv Elektronnych SFU
1
The Online Books Page (Penn Libraries, University of Pennsylvania)
1
Theological Reflections: Eastern European Journal of Theology
1
Umeå University: Publications (DiVA)
1
University of Calgary Journal Hosting
1
University of Copenhagen: Research
1
Université de Versailles Saint-Quentin-en-Yvelines: HAL-UVSQ
1
Utah State University: DigitalCommons@USU
1