# S. Pietruszczak
**Wikidata**: [Q99585905](https://www.wikidata.org/wiki/Q99585905)  
**Source**: https://4ort.xyz/entity/s-pietruszczak


## References

1. Virtual International Authority File
2. [Source](http://ci.nii.ac.jp/author/DA03612852?l=en)
3. CiNii Research
4. [Source](https://opac.si.cobiss.net/opac7/conor/119113571)
5. [Source](http://trove.nla.gov.au/people/997959?q&c=people)
6. CONOR.SI