# Josef Nikolaus Sies
**Wikidata**: [Q61199475](https://www.wikidata.org/wiki/Q61199475)  
**Source**: https://4ort.xyz/entity/josef-nikolaus-sies


## References

1. Integrated Authority File
2. CERL Thesaurus
3. Catalog of the German National Library
4. Österreichisches Biographisches Lexikon 1815–1950
5. [Source](http://www.musiklexikon.ac.at/ml/ml-beacon.txt)