Wagner, A. [P:(DE-HGF)0] ; Sturm, S. [P:(DE-HGF)0] ; Köhler, F. [P:(DE-HGF)0] ; Quint, W. [P:(DE-Ds200)OR0987] ; Werth, G. [P:(DE-HGF)0] ; Blaum, K. [P:(DE-HGF)0]