# Rudolf Helm
**Wikidata**: [Q94830835](https://www.wikidata.org/wiki/Q94830835)  
**Source**: https://4ort.xyz/entity/rudolf-helm-q94830835


## References

1. Catalog of the German National Library
2. Integrated Authority File
3. Czech National Authority Database
4. [Source](https://kalliope-verbund.info/DE-611-BF-96387)
5. Virtual International Authority File
6. CONOR.SI