# Otto Maurer
**Wikidata**: [Q72928981](https://www.wikidata.org/wiki/Q72928981)  
**Source**: https://4ort.xyz/entity/otto-maurer-q72928981


## References

1. Catalog of the German National Library
2. Virtual International Authority File
3. [Source](https://zbcollections.ch/home/#/content/c2246dbec87e4abcb5a6e07cbc7d7555)
4. Integrated Authority File
5. The LiederNet Archive