399px-20160907-_Rolf_Pohl_-_by_Isabelle_Hannemann.jpg

Rolf Pohl
Rolf Pohl
Lizenz: 
CC Attribution, Non-Commercial, Share Alike
Quelle: 
Isabelle Hanneman, Edelknipse [CC BY-SA 4.0 (https://creativecommons.org/licenses/by-sa/4.0)], from Wikimedia Commons