Gensch, I. [P:(DE-Juel1)6110] ; Maser, R. [P:(DE-HGF)0] ; Schell, D. [P:(DE-HGF)0] ; Afchine, A. [P:(DE-Juel1)129108] ; Krämer, K. [P:(DE-Juel1)VDB51956]