# Koos van der Werff

> Dutch psychologist

**Wikidata**: [Q21684362](https://www.wikidata.org/wiki/Q21684362)  
**Source**: https://4ort.xyz/entity/koos-van-der-werff


## References

1. Catalogus Professorum Academiae Rheno-Traiectinae
2. Catalogus Professorum Academiae Groninganae
3. [Source](https://research.rug.nl/en/publications/sociale-ontwikkeling-en-na%C3%AFviteit-van-proefpersonen)