Content Provider
HELDA – University of Helsinki Open Repository
10
The University of Melbourne: Digitised Collections
5
Zenodo
4
COS Center for Open Science (via Crossref)
2
David Rumsey Historical Map Collection (Cartography Associates)
1
Hamburger Zentrum für Sprachkorpora (HZSK): Digital Repository for Linguistic Resources and Tools
1
Hungarian Electronic Library (MEK)
1
NORA (National aggregator of open repositories of Russian universities)
1
OpenEdition
1
Theseus.fi (Open Repository of the Universities of Applied Sciences)
1
Universidade Estadual Paulista São Paulo: Acervo Digital da UNESP / São Paulo State University
1
University of Alberta: Era - Education and Research Archive
1
University of Turku: UTUPub
1
University of Washington, Seattle: Digital Collections
1
Unknown
1
Zhytomyr National Agroecological University (ZNAEU): Electronic Archive
1
neliti (Indonesia's Think Tank Database)
1