# Ton A. C. M. Kalker

> Ph.D. Universiteit Leiden 1986

**Wikidata**: [Q102267863](https://www.wikidata.org/wiki/Q102267863)  
**Source**: https://4ort.xyz/entity/ton-a-c-m-kalker


## References

1. Mathematics Genealogy Project
2. Personal Authority Wikibase of the Czech Republic