# Kazimierz Twardowski

> Polish philosopher, psychologist and logician (1866–1938)

**Wikidata**: [Q381994](https://www.wikidata.org/wiki/Q381994)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Kazimierz_Twardowski)  
**Source**: https://4ort.xyz/entity/kazimierz-twardowski


## References

1. Integrated Authority File
2. BnF authorities
3. Czech National Authority Database
4. Lychakiv Necropolis
5. Mathematics Genealogy Project
6. International Standard Name Identifier
7. CiNii Research
8. Brockhaus Enzyklopädie
9. Internet Philosophy Ontology project
10. Croatian Encyclopedia
11. Freebase Data Dumps. 2013
12. Virtual International Authority File
13. Treccani's Enciclopedia on line
14. LIBRIS. 2012
15. Treccani Philosophy
16. Sejm-Wielki.pl
17. Bibliography of the History of the Czech Lands