# Karol Frenkel
**Wikidata**: [Q11736029](https://www.wikidata.org/wiki/Q11736029)  
**Source**: https://4ort.xyz/entity/karol-frenkel


## References

1. [Source](http://viaf.org/viaf/data/viaf-20170101-links.txt.gz)
2. Virtual International Authority File
3. NUKAT
4. MAK
5. Sejm-Wielki.pl