# Wilhelm Winkler
**Wikidata**: [Q54556085](https://www.wikidata.org/wiki/Q54556085)  
**Source**: https://4ort.xyz/entity/wilhelm-winkler-q54556085


## References

1. BnF authorities
2. Catalog of the German National Library
3. [Source](https://kalliope-verbund.info/DE-611-BF-111959)
4. Virtual International Authority File
5. Library of Congress Control Number