# Tadeáš Hájek

> Czech astronomist and mathematician

**Wikidata**: [Q1355663](https://www.wikidata.org/wiki/Q1355663)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Tadeáš_Hájek)  
**Source**: https://4ort.xyz/entity/tade-h-jek


## References

1. Integrated Authority File
2. Czech National Authority Database
3. The Fine Art Archive
4. Biographical Dictionary of the History of the Czech Lands
5. BnF authorities
6. LIBRIS. 2012
7. [Olomouc City Library regional database](https://tritius.kmol.cz/authority/865231)
8. International Standard Name Identifier
9. Virtual International Authority File
10. Freebase Data Dumps. 2013
11. Otto's encyclopedia
12. [Source](http://digitale.beic.it/primo_library/libweb/action/search.do?fn=search&vid=BEIC&vl%28freeText0%29=Hájek_z_Hájku_Tadeáš)
13. CONOR.SI
14. Bibliography of the History of the Czech Lands
15. Provenio
16. Regional Database of the Central Bohemian Research Library in Kladno