# Gustav Effenberger
**Wikidata**: [Q94925170](https://www.wikidata.org/wiki/Q94925170)  
**Source**: https://4ort.xyz/entity/gustav-effenberger


## References

1. Catalog of the German National Library
2. Czech National Authority Database
3. Deutsche Biographie
4. [Source](https://www.gwlb.de/nis/niedersaechsische_personen/)
5. Virtual International Authority File