Keskin, V. [P:(DE-HGF)0] ; Aktaş, B. [P:(DE-HGF)0] ; Schmalhorst, J. [P:(DE-HGF)0] ; Reiss, G. [P:(DE-HGF)0] ; Zhang, Hongbin [P:(DE-Juel1)138451] ; Weischenberg, J. [P:(DE-Juel1)143607] ; Mokrousov, Y. [P:(DE-Juel1)130848]