Smirnov, V. [P:(DE-Juel1)130297] ; Welter, K. [P:(DE-Juel1)167359] ; Becker, Jan Philipp [P:(DE-Juel1)142337] ; Urbain, F. [P:(DE-Juel1)156469] ; Jaegermann, W. [P:(DE-HGF)0] ; Finger, F. [P:(DE-Juel1)130238]