# Gustav Tugendreich
**Wikidata**: [Q23071979](https://www.wikidata.org/wiki/Q23071979)  
**Source**: https://4ort.xyz/entity/gustav-tugendreich


## References

1. BnF authorities
2. Virtual International Authority File
3. Brockhaus Enzyklopädie
4. National Library of Israel Names and Subjects Authority File