# Christian Willius
**Wikidata**: [Q55904177](https://www.wikidata.org/wiki/Q55904177)  
**Source**: https://4ort.xyz/entity/christian-willius


## References

1. Integrated Authority File
2. CERL Thesaurus
3. Catalog of the German National Library
4. MAK
5. [Source](http://thesaurus.cerl.org/record/cnp00480220)