# Zbigniew Kączkowski
**Wikidata**: [Q9388092](https://www.wikidata.org/wiki/Q9388092)  
**Source**: https://4ort.xyz/entity/zbigniew-k-czkowski


## References

1. Czech National Authority Database
2. Virtual International Authority File
3. WorldCat Entities
4. Integrated Authority File
5. [Source](http://nekrologi.wyborcza.pl/0,11,,435428,Zbigniew-K%C4%85czkowski-inne.html)
6. Polish Science