Vetterkind, S. [P:(DE-HGF)0] ; Illenberger, S. [P:(DE-HGF)0] ; Kubicek, J. [P:(DE-Juel1)VDB10481] ; Boosen, M. [P:(DE-HGF)0] ; Appel, S. [P:(DE-HGF)0] ; Naim, H. Y. [P:(DE-HGF)0] ; Scheidtmann, K.-H. [P:(DE-HGF)0] ; Preuss, U. [P:(DE-HGF)0]