# Ralf Roletschek

> German civil engineer and photographer

**Wikidata**: [Q15080600](https://www.wikidata.org/wiki/Q15080600)  
**Source**: https://4ort.xyz/entity/ralf-roletschek


## References

1. [Source](https://commons.wikimedia.org/w/index.php?title=User:Ralf_Roletschek&oldid=973634211)
2. Virtual International Authority File
3. Integrated Authority File
4. [Source](http://www.roletschek.at/)
5. [Source](https://commons.wikimedia.org/w/index.php?title=File:14-08-00-wlm-es-RalfR-02.jpg&oldid=135731720)
6. ADAGP directory