# Heinrich Sauer
**Wikidata**: [Q4188502](https://www.wikidata.org/wiki/Q4188502)  
**Source**: https://4ort.xyz/entity/heinrich-sauer-q4188502


## References

1. Catalog of the German National Library
2. Virtual International Authority File
3. [Source](https://kalliope-verbund.info/DE-611-BF-110582)
4. [Source](https://kalliope-verbund.info/DE-611-BF-12335)