# Joseph Langer
**Wikidata**: [Q95246418](https://www.wikidata.org/wiki/Q95246418)  
**Source**: https://4ort.xyz/entity/joseph-langer-q95246418


## References

1. Biographisches Lexikon des Kaiserthums Oesterreich
2. [Source](http://biography.hiu.cas.cz/Personal/index.php?curid=77970)
3. [List of residents in Prague 1830-1910 (1920)](http://katalog.ahmp.cz/pragapublica/permalink?xid=5D94FD0D40E711E18195002215111B5A&scan=1#scan1)