# Élie Ritter

> Swiss mathematician

**Wikidata**: [Q55897828](https://www.wikidata.org/wiki/Q55897828)  
**Source**: https://4ort.xyz/entity/-lie-ritter


## References

1. [Source](https://ge.ch/arvaegrefdoc/EC3/88189/00000046.JPG)
2. [Source](https://ge.ch/arvaegrefdoc/EC3/88893/chaeg_ec_geneve_d_65_00050.JPG)
3. CERL Thesaurus
4. IdRef
5. Catalog of the German National Library
6. Virtual International Authority File