Li, Haifeng [P:(DE-82)004158] ; Xiao, Yinguo [P:(DE-82)109932] ; Schmitz, Berthold [P:(DE-82)119375] ; Persson, Jörg [P:(DE-82)119376] ; Schmidt, Wolfgang [P:(DE-82)119377] ; Meuffels, Paul [P:(DE-82)012861] ; Roth, Georg [P:(DE-82)IDM01728] ; Brückel, Thomas [P:(DE-82)001489]