# Wilhelm Koppelmann
**Wikidata**: [Q95248799](https://www.wikidata.org/wiki/Q95248799)  
**Source**: https://4ort.xyz/entity/wilhelm-koppelmann


## References

1. Catalog of the German National Library
2. Integrated Authority File
3. Virtual International Authority File
4. [Source](http://uli.nli.org.il/F/?func=find-b&local_base=NLX10&find_code=UID&request=987007291157605171)