# Johann Valentin Klein
**Wikidata**: [Q60842758](https://www.wikidata.org/wiki/Q60842758)  
**Source**: https://4ort.xyz/entity/johann-valentin-klein


## References

1. Czech National Authority Database
2. CERL Thesaurus
3. Catalog of the German National Library
4. [Source](http://thesaurus.cerl.org/record/cnp00385495)