# Constantin Kaufmann
**Wikidata**: [Q72190895](https://www.wikidata.org/wiki/Q72190895)  
**Source**: https://4ort.xyz/entity/constantin-kaufmann


## References

1. Czech National Authority Database
2. Catalog of the German National Library
3. [Source](https://www.ibme.uzh.ch/dam/jcr:e9747cdc-624a-436b-b8e1-2ba26fe25af0/Privatbestände%20AfM_2019_03_20.pdf)
4. Integrated Authority File
5. Virtual International Authority File