# Heinz Engels
**Wikidata**: [Q94760699](https://www.wikidata.org/wiki/Q94760699)  
**Source**: https://4ort.xyz/entity/heinz-engels-q94760699


## References

1. Catalog of the German National Library
2. BnF authorities
3. Czech National Authority Database
4. CiNii Research
5. Virtual International Authority File
6. Bibliography of the History of the Czech Lands