Content Provider
CyberLeninka (Scientific Electronic Library)
10
Directory of Open Access Journals: DOAJ Articles
10
Altai State University: Scientific Journals of ASU
8
DataCite Metadata Store (German National Library of Science and Technology)
5
Interactive Plus (E-Journal)
2
Tomsk State University Research Library
2
Electrical Engineering and Power Engineering (EE&PE - E-Journal)
1
Electronic Kharkiv National Pedagogical University Institutional Repository
1
NORA (National aggregator of open repositories of Russian universities)
1
Scientific Periodicals of Ukraine (Ukrainian Research and Academic Network)
1