Content Provider
Directory of Open Access Journals: DOAJ Articles
7
Doria (National Library of Finland)
5
Alia - Finnish Social Science Data Archive
2
CESSDA DC Data Catalogue (Consortium of European Social Science Data Archives)
2
Unknown
2
Helsingfors Universitet: HELDA – Helsingin yliopiston digitaalinen arkisto
1
IRIS UNIPV (Università degli studi di Pavia)
1