# Petr Spiridonovich Bili︠a︡rskīĭ

> Russian scientist

**Wikidata**: [Q15981149](https://www.wikidata.org/wiki/Q15981149)  
**Source**: https://4ort.xyz/entity/petr-spiridonovich-bili-a-rsk


## References

1. Integrated Authority File
2. Czech National Authority Database
3. Virtual International Authority File
4. Library of Congress Authorities