# Rolf Walder

> Ph.D. ETH Zürich 1993

**Wikidata**: [Q102226948](https://www.wikidata.org/wiki/Q102226948)  
**Source**: https://4ort.xyz/entity/rolf-walder


## References

1. Virtual International Authority File
2. Mathematics Genealogy Project
3. Astronomy Genealogy Project
4. [Source](https://perso.ens-lyon.fr/rolf.walder/RolfWalderENS_English.html)
5. IdRef