# Willem Koops

> Dutch psychologist

**Wikidata**: [Q2548963](https://www.wikidata.org/wiki/Q2548963)  
**Source**: https://4ort.xyz/entity/willem-koops-q2548963


## References

1. [BnF authorities](https://catalogue.bnf.fr/ark:/12148/cb165117696)
2. [Source](https://research.rug.nl/en/publications/sociale-ontwikkeling-en-na%C3%AFviteit-van-proefpersonen)
3. Catalogus Professorum Academiae Rheno-Traiectinae
4. Mathematics Genealogy Project
5. general catalog of BnF
6. Virtual International Authority File
7. [Source](https://viaf.org/viaf/data/viaf-20230206-links.txt.gz)
8. IdRef