# Heinrich Alt
**Wikidata**: [Q104638427](https://www.wikidata.org/wiki/Q104638427)  
**Source**: https://4ort.xyz/entity/heinrich-alt-q104638427


## References

1. CERL Thesaurus
2. Catalog of the German National Library
3. Virtual International Authority File
4. Répertoire International des Sources Musicales
5. Catalogue of the Library of the Pontifical University of Saint Thomas Aquinas
6. MAK
7. NUKAT
8. [Source](http://thesaurus.cerl.org/record/cnp01173789)
9. [Source](https://opac.rism.info/search?id=pe30106654)
10. [Source](https://pust.urbe.it/cgi-bin/koha/opac-authoritiesdetail.pl?marc=1&authid=30406)
11. [Source](http://mak.bn.org.pl/cgi-bin/KHW/makwww.exe?BM=1&NU=1&IM=4&WI=9810654592605606)