# Leopold Kayssler
**Wikidata**: [Q55893079](https://www.wikidata.org/wiki/Q55893079)  
**Source**: https://4ort.xyz/entity/leopold-kayssler


## References

1. CERL Thesaurus
2. Catalog of the German National Library
3. NUKAT
4. [Source](http://thesaurus.cerl.org/record/cnp01075699)