# Franz Hackel
**Wikidata**: [Q94940680](https://www.wikidata.org/wiki/Q94940680)  
**Source**: https://4ort.xyz/entity/franz-hackel


## References

1. Catalog of the German National Library
2. Integrated Authority File
3. [Source](http://kalliope-verbund.info/DE-611-BF-38346)
4. [Source](http://kalliope-verbund.info/DE-611-BF-39224)
5. [Source](https://kalliope-verbund.info/DE-611-BF-39224)
6. [Source](https://kalliope-verbund.info/DE-611-BF-38346)