# Gideon Jan Verdam
**Wikidata**: [Q15445490](https://www.wikidata.org/wiki/Q15445490)  
**Source**: https://4ort.xyz/entity/gideon-jan-verdam


## References

1. Catalogus Professorum Academiae Groninganae
2. Leidse Hoogleraren
3. Genealogics
4. Mathematics Genealogy Project
5. Czech National Authority Database
6. Virtual International Authority File
7. CiNii Research
8. Biografisch Portaal
9. KNAW Past Members