# W.P.M. de Ruijter

> Ph.D.

**Wikidata**: [Q80761328](https://www.wikidata.org/wiki/Q80761328)  
**Source**: https://4ort.xyz/entity/w-p-m-de-ruijter


## References

1. Mathematics Genealogy Project
2. Virtual International Authority File
3. National Library of Israel Names and Subjects Authority File