# Gustav Adolf Kleinfeller

> German teacher and mathematician

**Wikidata**: [Q94841356](https://www.wikidata.org/wiki/Q94841356)  
**Source**: https://4ort.xyz/entity/gustav-adolf-kleinfeller


## References

1. [Source](https://www.bavarikon.de/object/bav:UBR-BOS-0000P437XTB00019?cq=Gustav+Adolf+Kleinfeller&p=437&lang=de)
2. Catalog of the German National Library