This photograph was taken by <b>"<a href="https://en.wikipedia.org/wiki/de:User:Ordercrazy" class="extiw" title="w:de:User:Ordercrazy">Ordercrazy</a>"</b> (Thomas Springer) and released in the public domain according to the CC0 licence. You are free to use this file free of charge and without any conditions or restrictions of the photographer. If you still want to credit the author, you can do this stating <b>Wikipedia/Thomas Springer</b>.
<a href="//commons.wikimedia.org/wiki/User:Ordercrazy" title="User:Ordercrazy">Ordercrazy</a>
<span class="int-own-work" lang="en">Own work</span>