Content Provider
University of Calgary Journal Hosting
12
Directory of Open Access Journals: DOAJ Articles
7
Aarhus University: Research
4
University of Tromsø: Septentrio Academic Publishing
4
KOPS - The Institutional Repository of the University of Konstanz
2
University of St Andrews: Research Portal
2
ARPI - Archivio della Ricerca dell'Università di Pisa
1
Frontiers (Publisher)
1
Liverpool John Moores University: LJMU Research Online
1
Polar Research (E-Journal)
1
Springer Nature (via Crossref)
1
University of Copenhagen: Research
1
University of Groningen research database
1
University of St Andrews: Digital Research Repository
1