# Dirk van Os

> Dutch university teacher (1889-1971)

**Wikidata**: [Q21552079](https://www.wikidata.org/wiki/Q21552079)  
**Source**: https://4ort.xyz/entity/dirk-van-os


## References

1. Catalogus Professorum Academiae Groninganae
2. [Catalogus Professorum Academiae Groninganae](http://hoogleraren.ub.rug.nl/?page=showPerson&type=hoogleraar&hoogleraar_id=145)
3. Album Academicum
4. Virtual International Authority File