# Gustav Singer
**Wikidata**: [Q94866391](https://www.wikidata.org/wiki/Q94866391)  
**Source**: https://4ort.xyz/entity/gustav-singer-q94866391


## References

1. Catalog of the German National Library
2. Encyclopedia of Brno History
3. Integrated Authority File
4. Österreichisches Biographisches Lexikon 1815–1950
5. Deutsche Biographie
6. NUKAT
7. Virtual International Authority File