# Ludwig Pflaum
**Wikidata**: [Q55902336](https://www.wikidata.org/wiki/Q55902336)  
**Source**: https://4ort.xyz/entity/ludwig-pflaum


## References

1. CERL Thesaurus
2. Catalog of the German National Library
3. IdRef
4. [Source](http://thesaurus.cerl.org/record/cnp01263578)