# Friedrich Stein
**Wikidata**: [Q88271442](https://www.wikidata.org/wiki/Q88271442)  
**Source**: https://4ort.xyz/entity/friedrich-stein-q88271442


## References

1. Catalog of the German National Library
2. Integrated Authority File
3. Virtual International Authority File
4. [Source](https://kalliope-verbund.info/DE-611-BF-119068)
5. [Source](https://kalliope-verbund.info/DE-611-BF-119069)
6. CERL Thesaurus