# Otto Langhammer
**Wikidata**: [Q95373498](https://www.wikidata.org/wiki/Q95373498)  
**Source**: https://4ort.xyz/entity/otto-langhammer


## References

1. Regional Database of the Central Bohemian Research Library in Kladno
2. [regional database of the Regional Library of Highlands](https://tritius.kkvysociny.cz/authority/1067826)
3. Czech National Authority Database
4. Virtual International Authority File