# Ludolf Emil Hansen
**Wikidata**: [Q26719077](https://www.wikidata.org/wiki/Q26719077)  
**Source**: https://4ort.xyz/entity/ludolf-emil-hansen


## References

1. Czech National Authority Database
2. Integrated Authority File
3. [Source](https://www.kohoutikriz.org/autor.html?id=hanse&t=p)
4. Virtual International Authority File