# Boris Vasilʹevich Sergievskiĭ
**Wikidata**: [Q7210870](https://www.wikidata.org/wiki/Q7210870)  
**Source**: https://4ort.xyz/entity/boris-vasil-evich-sergievski-


## References

1. IdRef
2. Czech National Authority Database
3. Virtual International Authority File
4. Faceted Application of Subject Terminology