# Helmut Rittstieg
**Wikidata**: [Q55676220](https://www.wikidata.org/wiki/Q55676220)  
**Source**: https://4ort.xyz/entity/helmut-rittstieg


## References

1. Integrated Authority File
2. Czech National Authority Database
3. Virtual International Authority File
4. IdRef
5. FactGrid
6. National Library of Israel Names and Subjects Authority File