# Karl Ritter
**Wikidata**: [Q94803854](https://www.wikidata.org/wiki/Q94803854)  
**Source**: https://4ort.xyz/entity/karl-ritter-q94803854


## References

1. Integrated Authority File
2. [Deutsche Biographie](https://www.deutsche-biographie.de/gnd119322897.html)
3. Catalog of the German National Library
4. Deutsche Biographie
5. CERL Thesaurus