Ziese, M. [P:(DE-HGF)0] ; Kiendler-Scharr, A. [P:(DE-Juel1)4528] ; Wex, H. [P:(DE-HGF)0] ; Henning, S. [P:(DE-HGF)0] ; Stratmann, F. [P:(DE-HGF)0] ; Mentel, T. F. [P:(DE-Juel1)16346]