# Jack Kramer
**Wikidata**: [Q112488927](https://www.wikidata.org/wiki/Q112488927)  
**Source**: https://4ort.xyz/entity/jack-kramer-q112488927


## References

1. Czech National Authority Database
2. [Source](https://viaf.org/viaf/data/viaf-20230206-links.txt.gz)
3. Catalogo of the National Library of India