# Adolph Klaas
**Wikidata**: [Q94856647](https://www.wikidata.org/wiki/Q94856647)  
**Source**: https://4ort.xyz/entity/adolph-klaas


## References

1. Deutsche Biographische Enzyklopädie, 2. edition
2. Catalog of the German National Library
3. Integrated Authority File
4. Hessian Biography