# Tjalling Edzard Gelsema

> Ph.D. Universiteit Leiden 2005

**Wikidata**: [Q102296383](https://www.wikidata.org/wiki/Q102296383)  
**Source**: https://4ort.xyz/entity/tjalling-edzard-gelsema


## References

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