# Ryszard Gajęcki
**Wikidata**: [Q123508906](https://www.wikidata.org/wiki/Q123508906)  
**Source**: https://4ort.xyz/entity/ryszard-gaj-cki


## References

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