# Erich A. Helfert
**Wikidata**: [Q112427157](https://www.wikidata.org/wiki/Q112427157)  
**Source**: https://4ort.xyz/entity/erich-a-helfert


## References

1. Integrated Authority File
2. IdRef
3. Czech National Authority Database
4. [Source](https://viaf.org/viaf/data/viaf-20230206-links.txt.gz)