# Helena Maria de Ruiter

> Ph.D. Technische Universiteit Eindhoven 1989

**Wikidata**: [Q102315468](https://www.wikidata.org/wiki/Q102315468)  
**Source**: https://4ort.xyz/entity/helena-maria-de-ruiter


## References

1. Mathematics Genealogy Project
2. Dutch National Thesaurus for Author Names