Sorokin, I. A. [P:(DE-HGF)0] ; Vizgalov, I. V. [P:(DE-HGF)0] ; Kurnaev, V. A. [P:(DE-HGF)0] ; Brandt, C. [P:(DE-Juel1)161560] ; Kreter, A. [P:(DE-Juel1)130070] ; Linsmeier, Ch. [P:(DE-Juel1)157640]