# Josef Arnošt Ryba

> Czech oftalmologist and professor

**Wikidata**: [Q15124051](https://www.wikidata.org/wiki/Q15124051)  
**Source**: https://4ort.xyz/entity/josef-arno-t-ryba


## References

1. Regional Database of the Central Bohemian Research Library in Kladno
2. Czech National Authority Database
3. Ryba, Joseph Ernst (BLKÖ)
4. [List of residents in Prague 1830-1910 (1920)](http://katalog.ahmp.cz/pragapublica/permalink?xid=AA4A06E9A67211E29B0A74F06DCD07FC&scan=1#scan1)
5. Virtual International Authority File
6. [Source](https://www.genealogie.cz/assets/2025/03/ghl3-4_1995.pdf)
7. Bibliography of the History of the Czech Lands