# Alexander Engel
**Wikidata**: [Q94905493](https://www.wikidata.org/wiki/Q94905493)  
**Source**: https://4ort.xyz/entity/alexander-engel-q94905493


## References

1. Catalog of the German National Library
2. Integrated Authority File
3. BillionGraves
4. Virtual International Authority File
5. CERL Thesaurus
6. Provenio