Juni 2014 & June 2015, Berlin
Prof. Helmut Schwarz and Prof. Ian Akyildiz
Prof. Helmut Schwarz and Prof. Chengshan Xiao
Prof. Chengshan Xiao and Germany’s Federal President Gauck
Prof. Chengshan Xiao, Germany’s Federal President Gauck and Prof. Helmut Schwarz
Prof. Ian F. Akyildiz and German Bundespresident, Joachim Gauck
Prof. Ian F. Akyildiz and German Bundespresident, Joachim Gauck