# Gerardus J. Hooyman

> Ph.D. Universiteit Leiden 1955

**Wikidata**: [Q102345903](https://www.wikidata.org/wiki/Q102345903)  
**Source**: https://4ort.xyz/entity/gerardus-j-hooyman


## References

1. IdRef
2. Mathematics Genealogy Project
3. [Source](https://viaf.org/viaf/data/viaf-20230206-links.txt.gz)
4. Dutch National Thesaurus for Author Names