# Helmut Roettger
**Wikidata**: [Q95216345](https://www.wikidata.org/wiki/Q95216345)  
**Source**: https://4ort.xyz/entity/helmut-roettger


## References

1. Integrated Authority File
2. Catalog of the German National Library
3. Virtual International Authority File
4. National Library of Israel Names and Subjects Authority File