# Léon Koopmans

> Dutch astronomer

**Wikidata**: [Q29001671](https://www.wikidata.org/wiki/Q29001671)  
**Source**: https://4ort.xyz/entity/l-on-koopmans


## References

1. Catalogus Professorum Academiae Groninganae
2. [Source](https://www.rug.nl/staff/l.v.e.koopmans/cv)
3. Virtual International Authority File
4. [Source](https://leonkoopmans.wordpress.com/group/)