# Wolf-Rüdiger Umbach

> German association football referee

**Wikidata**: [Q2588547](https://www.wikidata.org/wiki/Q2588547)  
**Source**: https://4ort.xyz/entity/wolf-r-diger-umbach


## References

1. Mathematics Genealogy Project
2. Munzinger Sport
3. [Source](http://www.munzinger.de/search/go/document.jsp?id=01000001096)