# Ludwig Herzer

> Austrian librettist and writer (1872–1939)

**Wikidata**: [Q88934](https://www.wikidata.org/wiki/Q88934)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Ludwig_Herzer)  
**Source**: https://4ort.xyz/entity/ludwig-herzer


## References

1. Integrated Authority File
2. BnF authorities
3. Virtual International Authority File
4. CiNii Research
5. MusicBrainz
6. International Music Score Library Project
7. Discogs
8. filmportal.de
9. [Source](http://iswcnet.cisac.org/)
10. Carnegie Hall linked open data
11. LIBRIS. 2012
12. National Library of Israel Names and Subjects Authority File
13. Virtual Study of Theatre Institute