# Chemische Fabrik Helfenberg
**Wikidata**: [Q1069412](https://www.wikidata.org/wiki/Q1069412)  
**Source**: https://4ort.xyz/entity/chemische-fabrik-helfenberg


## References

1. Virtual International Authority File
2. CiNii Research
3. 20th Century Press Archives
4. National Library of Israel Names and Subjects Authority File