# Johannes Rühlemann

> Ph.D. Martin-Luther-Universität Halle-Wittenberg 1917

**Wikidata**: [Q102193300](https://www.wikidata.org/wiki/Q102193300)  
**Source**: https://4ort.xyz/entity/johannes-r-hlemann


## References

1. Mathematics Genealogy Project
2. Virtual International Authority File