# Heinrich Hartmann
**Wikidata**: [Q95635862](https://www.wikidata.org/wiki/Q95635862)  
**Source**: https://4ort.xyz/entity/heinrich-hartmann-q95635862


## References

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