# John R. Graef

> Ph.D. Southern Illinois University at Carbondale 1970

**Wikidata**: [Q102139996](https://www.wikidata.org/wiki/Q102139996)  
**Source**: https://4ort.xyz/entity/john-r-graef


## References

1. Czech National Authority Database
2. Mathematics Genealogy Project
3. [Source](https://www.utc.edu/arts-and-sciences/mathematics/faculty-and-staff)
4. [Source](https://viaf.org/viaf/data/viaf-20230206-links.txt.gz)