# Otto Preen
**Wikidata**: [Q1575669](https://www.wikidata.org/wiki/Q1575669)  
**Source**: https://4ort.xyz/entity/otto-preen


## References

1. Integrated Authority File
2. Virtual International Authority File
3. [Source](http://www.die-fruchtbringende-gesellschaft.de/files/fg_beacon.txt)
4. CERL Thesaurus