German artist Klaus Staeck
<ul><li><a href="//commons.wikimedia.org/wiki/File:Staeck,Klaus-Koeln-Museum-Ludwig-111209.jpg" title="File:Staeck,Klaus-Koeln-Museum-Ludwig-111209.jpg">Staeck,Klaus-Koeln-Museum-Ludwig-111209.jpg</a>: <a href="//commons.wikimedia.org/wiki/User:Hpschaefer" title="User:Hpschaefer">Hpschaefer</a> <a rel="nofollow" class="external free" href="http://www.reserv-art.de">http://www.reserv-art.de</a></li>
<li>derivative work: <a href="//commons.wikimedia.org/wiki/User:Dontworry" title="User:Dontworry">Dontworry</a></li></ul>
CC BY-SA 3.0
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