# Karl Johannes Oertel

> Dr. phil. Ludwig-Maximilians-Universität München 1890

**Wikidata**: [Q94834999](https://www.wikidata.org/wiki/Q94834999)  
**Source**: https://4ort.xyz/entity/karl-johannes-oertel


## References

1. Catalog of the German National Library
2. Integrated Authority File
3. Mathematics Genealogy Project
4. Virtual International Authority File