# Sergei Leiferkus

> Russian singer

**Wikidata**: [Q649989](https://www.wikidata.org/wiki/Q649989)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Sergei_Leiferkus)  
**Source**: https://4ort.xyz/entity/sergei-leiferkus


## References

1. Integrated Authority File
2. BnF authorities
3. Czech National Authority Database
4. MusicBrainz
5. Virtual International Authority File
6. CiNii Research
7. IMDb
8. Freebase Data Dumps. 2013
9. The Movie Database
10. National Library of Israel Names and Subjects Authority File