# Ludwik Erhardt

> Polish musicologist

**Wikidata**: [Q48851141](https://www.wikidata.org/wiki/Q48851141)  
**Source**: https://4ort.xyz/entity/ludwik-erhardt


## References

1. Integrated Authority File
2. BnF authorities
3. Czech National Authority Database
4. [Source](https://viaf.org/viaf/data/viaf-20230206-links.txt.gz)
5. Virtual International Authority File
6. CONOR.SI
7. MAK
8. Sejm-Wielki.pl
9. National Library of Israel Names and Subjects Authority File