# Witold Sierpiński
**Wikidata**: [Q111025217](https://www.wikidata.org/wiki/Q111025217)  
**Source**: https://4ort.xyz/entity/witold-sierpi-ski


## References

1. Czech National Authority Database
2. [Source](https://www.sgh.waw.pl/profesorowie-wirtualne-muzeum-sgh)
3. NUKAT
4. Virtual International Authority File
5. CiNii Research
6. MAK