# Valentin Michajlovič Kovalʹčuk
**Wikidata**: [Q94934593](https://www.wikidata.org/wiki/Q94934593)  
**Source**: https://4ort.xyz/entity/valentin-michajlovi-koval-uk


## References

1. Catalog of the German National Library
2. IdRef
3. Czech National Authority Database
4. Faceted Application of Subject Terminology
5. Virtual International Authority File
6. LIBRIS. 2016
7. National Library of Israel Names and Subjects Authority File