Merker, E. [P:(DE-HGF)0] ; Yazynin, I. [P:(DE-HGF)0] ; Napoly, O. [P:(DE-HGF)0] ; Brinkmann, R. [P:(DE-H253)PIP1002844] ; Walker, N. [P:(DE-H253)PIP1001358] ; Drozhdin, A. [P:(DE-HGF)0]