Spang, R. [P:(DE-HGF)0] ; Eidmann, G. [P:(DE-HGF)0] ; Riese, M. [P:(DE-Juel1)129145] ; Offermann, D. [P:(DE-Juel1)VDB1185] ; Pfister, L. [P:(DE-HGF)0] ; Wang, P. H. [P:(DE-HGF)0]