# Gustav Holzer
**Wikidata**: [Q94864309](https://www.wikidata.org/wiki/Q94864309)  
**Source**: https://4ort.xyz/entity/gustav-holzer-q94864309


## References

1. Catalog of the German National Library
2. [Source](https://kalliope-verbund.info/DE-611-BF-6379)