# Q133516740

> German painter and mathematician (1873-1949)

**Wikidata**: [Q133516740](https://www.wikidata.org/wiki/Q133516740)  
**Source**: https://4ort.xyz/entity/q133516740


## References

1. Integrated Authority File
2. OPAC SBN
3. Virtual International Authority File
4. CiNii Research