# Cornelis de Jager

> Dutch astronomer, university professor, pioneer of space science, science communicator and opponent of pseudoscience (1921–2021)

**Wikidata**: [Q1133624](https://www.wikidata.org/wiki/Q1133624)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Kees_de_Jager)  
**Source**: https://4ort.xyz/entity/cornelis-de-jager


## References

1. [Source](https://www.astronomie.nl/nieuws/kees-de-jager-100-overleden-2834)
2. Integrated Authority File
3. LIBRIS. 2012
4. Mathematics Genealogy Project
5. Czech National Authority Database
6. [Source](https://astronomische-gesellschaft.de/en/activities/awards/schwarzschild)
7. [Source](https://spd.aas.org/prizes/hale/previous)
8. [Source](http://iaaweb.org/content/view/142/242/)
9. Le président de l'observatoire de Paris regrette l'insuffisance des crédits de recherches attribués à l'astronomie. Le Monde. 1976
10. [Mathematics Genealogy Project](http://www.genealogy.ams.org/id.php?id=112543)
11. general catalog of BnF
12. Virtual International Authority File
13. CiNii Research
14. [Source](https://www.knaw.nl/nl/leden/leden/4303)
15. [Source](https://www.ae-info.org/ae/User/Jager_Cornelis)
16. SNAC
17. [Professor Kees de Jager overleden](https://www.texelsecourant.nl/nieuws/algemeen/205920/professor-kees-de-jager-overleden)
18. Freebase Data Dumps. 2013
19. IdRef
20. Goodreads