English description
<a href="//commons.wikimedia.org/wiki/User:Stefan_K%C3%BChn" title="User:Stefan Kühn">Stefan Kühn</a>
CC BY 3.0
<span class="int-own-work" lang="en">Own work</span>, original upload 27. Jun 2003 by <a href="https://de.wikipedia.org/wiki/Benutzer:Stefan_K%C3%BChn" class="extiw" title="de:Benutzer:Stefan Kühn">Stefan Kühn</a> (selfmade)