Kasper, Elisabeth [P:(DE-2719)9000419] ; Thöne-Otto, A. [P:(DE-HGF)0] ; Bürger, K. [P:(DE-HGF)0] ; Schröder, S. G. [P:(DE-HGF)0] ; Hoffmann, W. [P:(DE-2719)2000040] ; Schneider, W. [P:(DE-HGF)0] ; Teipel, S. [P:(DE-2719)2000026]