# Theophil Friedrich Christen

> Swiss mathematician (1873-1920)

**Wikidata**: [Q121959](https://www.wikidata.org/wiki/Q121959)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Theophil_Friedrich_Christen)  
**Source**: https://4ort.xyz/entity/theophil-friedrich-christen


## References

1. Integrated Authority File
2. Mathematics Genealogy Project
3. International Standard Name Identifier
4. Virtual International Authority File
5. Freebase Data Dumps. 2013