# Petko St. Petkov

> Bulgarian historian

**Wikidata**: [Q113804204](https://www.wikidata.org/wiki/Q113804204)  
**Source**: https://4ort.xyz/entity/petko-st-petkov


## References

1. Catalog of the German National Library
2. Integrated Authority File
3. Czech National Authority Database
4. Index Theologicus