# Karl Röttger

> German author (1877–1942)

**Wikidata**: [Q1732769](https://www.wikidata.org/wiki/Q1732769)  
**Source**: https://4ort.xyz/entity/karl-r-ttger


## References

1. Integrated Authority File
2. BnF authorities
3. Czech National Authority Database
4. International Standard Name Identifier
5. Virtual International Authority File
6. [Source](https://kalliope-verbund.info/DE-611-BF-712)
7. Brockhaus Enzyklopädie
8. [BnF authorities](http://data.bnf.fr/ark:/12148/cb12972080d)