# Johannes Christian Hartmann
**Wikidata**: [Q72937278](https://www.wikidata.org/wiki/Q72937278)  
**Source**: https://4ort.xyz/entity/johannes-christian-hartmann


## References

1. CERL Thesaurus
2. Catalog of the German National Library
3. Integrated Authority File
4. [Source](https://www.bach-digital.de/receive/BachDigitalPerson_agent_00007785)