# Jakob J. Köllhofer
**Wikidata**: [Q95757800](https://www.wikidata.org/wiki/Q95757800)  
**Source**: https://4ort.xyz/entity/jakob-j-k-llhofer


## References

1. Integrated Authority File
2. Catalog of the German National Library
3. Virtual International Authority File
4. CiNii Research
5. National Library of Israel Names and Subjects Authority File