# Erhard Hartstock
**Wikidata**: [Q95279568](https://www.wikidata.org/wiki/Q95279568)  
**Source**: https://4ort.xyz/entity/erhard-hartstock


## References

1. Czech National Authority Database
2. Catalog of the German National Library
3. [Source](https://kalliope-verbund.info/DE-611-BF-99787)
4. Virtual International Authority File