# Johannes Herbert Plokker

> Dutch university teacher

**Wikidata**: [Q63003947](https://www.wikidata.org/wiki/Q63003947)  
**Source**: https://4ort.xyz/entity/johannes-herbert-plokker


## References

1. Catalogus Professorum Academiae Rheno-Traiectinae
2. [Source](https://viaf.org/viaf/data/viaf-20230206-links.txt.gz)
3. RKDartists
4. Biografisch Portaal
5. Artists of the World Online
6. Virtual International Authority File