Palberg, T [P:(DE-HGF)0] ; Köller, T. [P:(DE-HGF)0] ; Sieber, B. [P:(DE-HGF)0] ; Schweinfurth, H. [P:(DE-HGF)0] ; Reiber, H. [P:(DE-HGF)0] ; Nägele, G. [P:(DE-Juel1)130858]