# Josef Frolík

> 1969 Czechoslovak spy (1928–1989)

**Wikidata**: [Q12026016](https://www.wikidata.org/wiki/Q12026016)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Josef_Frolík)  
**Source**: https://4ort.xyz/entity/josef-frol-k


## References

1. Czech National Authority Database
2. [Records of persons of interest](http://svazky.cz/test/svazkyMT.php?jmeno=Josef&prijm=Frolik&dnar=22.09.1928&hledej=Hledat)
3. International Standard Name Identifier
4. Faceted Application of Subject Terminology
5. Virtual International Authority File
6. [Source](http://svazky.cz/test/svazkyMT.php?jmeno=Josef&prijm=Frolik&dnar=22.09.1928&hledej=Hledat)
7. National Library of Israel Names and Subjects Authority File
8. Bibliography of the History of the Czech Lands