Maier, H. [P:(DE-HGF)0] ; Luthin, J. [P:(DE-HGF)0] ; Balden, M. [P:(DE-HGF)0] ; Linke, J. [P:(DE-Juel1)VDB2728] ; Koch, F. [P:(DE-HGF)0] ; Bolt, H. [P:(DE-HGF)0]