# Helmuth Gröger
**Wikidata**: [Q21415610](https://www.wikidata.org/wiki/Q21415610)  
**Source**: https://4ort.xyz/entity/helmuth-gr-ger


## References

1. Catalog of the German National Library
2. Sächsische Biografie
3. Czech National Authority Database
4. Virtual International Authority File
5. [Source](http://saebi.isgv.de/gnd/101078072)
6. CERL Thesaurus