# Otto Sommer
**Wikidata**: [Q55193574](https://www.wikidata.org/wiki/Q55193574)  
**Source**: https://4ort.xyz/entity/otto-sommer-q55193574


## References

1. Deutsche Biographie
2. Integrated Authority File
3. Catalog of the German National Library
4. [Source](https://www.deutsche-biographie.de/sfz80549.html)