# Zbyněk Hrkal

> researcher

**Wikidata**: [Q60448083](https://www.wikidata.org/wiki/Q60448083)  
**Source**: https://4ort.xyz/entity/zbyn-k-hrkal


## References

1. Czech National Authority Database
2. [Source](https://www.natur.cuni.cz/geologie/hydrogeologie/lide/zbynek-hrkal)
3. [IS VaVaI](https://api.isvavai.cz/)
4. Virtual International Authority File
5. [ORCID Public Data File 2020](https://pub.orcid.org/v3.0_rc1/0000-0002-8492-394X/external-identifiers/804459)
6. Bibliography of the History of the Czech Lands