# Karl Kollnig
**Wikidata**: [Q107165037](https://www.wikidata.org/wiki/Q107165037)  
**Source**: https://4ort.xyz/entity/karl-kollnig


## References

1. Integrated Authority File
2. Catalog of the German National Library
3. GEPRIS Historisch
4. Faceted Application of Subject Terminology
5. National Library of Israel Names and Subjects Authority File