# Hugo Klein
**Wikidata**: [Q94826704](https://www.wikidata.org/wiki/Q94826704)  
**Source**: https://4ort.xyz/entity/hugo-klein-q94826704


## References

1. Integrated Authority File
2. Catalog of the German National Library
3. [Österreichisches Biographisches Lexikon 1815–1950](https://www.biographien.ac.at/oebl/oebl_K/Klein_Hugo_1853_1915.xml)