# Otto Mácha
**Wikidata**: [Q95139974](https://www.wikidata.org/wiki/Q95139974)  
**Source**: https://4ort.xyz/entity/otto-m-cha


## References

1. Czech National Authority Database
2. [List of residents in Prague 1830-1910 (1920)](http://katalog.ahmp.cz/pragapublica/permalink?xid=611364DF773011E181B7002215111B5A&scan=1#scan1)
3. Virtual International Authority File
4. Répertoire International des Sources Musicales