# Gerd Callesen
**Wikidata**: [Q112375193](https://www.wikidata.org/wiki/Q112375193)  
**Source**: https://4ort.xyz/entity/gerd-callesen


## References

1. IdRef
2. Czech National Authority Database
3. Integrated Authority File
4. [Source](https://viaf.org/viaf/data/viaf-20230206-links.txt.gz)