Hunsmann, S. [P:(DE-HGF)0] ; Wunderle, K. [P:(DE-HGF)0] ; Wagner, S. [P:(DE-HGF)0] ; Rascher, U. [P:(DE-Juel1)129388] ; Schurr, U. [P:(DE-Juel1)129402] ; Ebert, V. [P:(DE-HGF)0]