# Karl Pira
**Wikidata**: [Q6050448](https://www.wikidata.org/wiki/Q6050448)  
**Source**: https://4ort.xyz/entity/karl-pira


## References

1. Czech National Authority Database
2. Virtual International Authority File
3. [Source](https://runeberg.org/vemardet/1918/0312.html)
4. [Source](https://runeberg.org/vemardet/1933/0682.html)
5. [Source](https://runeberg.org/vemardet/1939/0674.html)
6. [Source](https://runeberg.org/vemardet/1943/0664.html)
7. [Source](https://runeberg.org/vemardet/1945/0867.html)
8. [Source](https://runeberg.org/vemarvem/gota48/0779.html)
9. [Source](https://runeberg.org/vemardet/1953/0873.html)
10. LIBRIS. 2012