Welter, Katharina [P:(DE-Juel1)167359] ; Becker, Jan Philipp [P:(DE-Juel1)142337] ; Jaegermann, Wolfram [P:(DE-HGF)0] ; Finger, Friedhelm [P:(DE-Juel1)130238] ; Smirnov, Vladimir [P:(DE-Juel1)130297]