Helmbold, K. [P:(DE-HGF)0] ; Bubenzer, S. [P:(DE-Juel1)145464] ; Dahmen, B. [P:(DE-Juel1)131127] ; Eisert, A. [P:(DE-HGF)0] ; Gaber, T. J. [P:(DE-HGF)0] ; Habel, U. [P:(DE-HGF)0] ; Konrad, K. [P:(DE-HGF)0] ; Herpertz-Dahlmann, B. [P:(DE-HGF)0] ; Zepf, F. D. [P:(DE-HGF)0]