# Aleksander Widera
**Wikidata**: [Q110224939](https://www.wikidata.org/wiki/Q110224939)  
**Source**: https://4ort.xyz/entity/aleksander-widera


## References

1. Integrated Authority File
2. Czech National Authority Database
3. Virtual International Authority File
4. NUKAT
5. MAK
6. National Library of Israel Names and Subjects Authority File