Ernst Benda at an international event hosted by the Bertelsmann Stiftung
<a href="//commons.wikimedia.org/wiki/User:Bertelsmann_Stiftung" title="User:Bertelsmann Stiftung">Bertelsmann Stiftung</a>
CC BY-SA 3.0 de
<span class="int-own-work" lang="en">Own work</span>