Stein, O. [P:(DE-Juel1)3709] ; Flemming, J. [P:(DE-HGF)0] ; Dethof, A. [P:(DE-HGF)0] ; Schultz, M. G. [P:(DE-Juel1)6952] ; Geiss, H. [P:(DE-Juel1)16201] ; Friese, E. [P:(DE-HGF)0] ; Memmesheimer, M. [P:(DE-HGF)0]