# Johann Christian Langenheim
**Wikidata**: [Q72937730](https://www.wikidata.org/wiki/Q72937730)  
**Source**: https://4ort.xyz/entity/johann-christian-langenheim


## References

1. Integrated Authority File
2. Catalog of the German National Library
3. Virtual International Authority File
4. [Source](https://www.bach-digital.de/receive/BachDigitalPerson_agent_00003353)
5. CERL Thesaurus
6. NUKAT
7. MAK
8. BnF authorities
9. Czech National Authority Database
10. [Source](http://www.maru.firenze.sbn.it/MareMagnum/mare_magnum.htm)
11. Provenio