# Ko de Ridder

> researcher

**Wikidata**: [Q110544263](https://www.wikidata.org/wiki/Q110544263)  
**Source**: https://4ort.xyz/entity/ko-de-ridder


## References

1. IdRef
2. Catalogus Professorum Academiae Groninganae
3. [Source](https://zoek.officielebekendmakingen.nl/stcrt-2018-21914.html)
4. [Source](https://hoogleraren.ub.rug.nl/hoogleraren/1109-ridder-jacobus-ko-de)