# Johan H. Knapen

> astronomer

**Wikidata**: [Q97622171](https://www.wikidata.org/wiki/Q97622171)  
**Source**: https://4ort.xyz/entity/johan-h-knapen


## References

1. [Source](http://id.loc.gov/authorities/names/no2002025188)
2. [Source](http://research.iac.es/galeria/jhk//Johan%20Knapen's%20Homepage/CV.html)
3. Mathematics Genealogy Project
4. [Source](http://research.iac.es/galeria/jhk//Johan%20Knapen's%20Homepage/Welcome.html)
5. CiNii Research
6. [Source](https://www.iau.org/administration/membership/individual/1398/)
7. [Source](http://research.iac.es/galeria/jhk//Johan%20Knapen's%20Homepage/Books.html)