Kuzel, P. [P:(DE-HGF)0] ; Kadlec, F. [P:(DE-HGF)0] ; Nemec, H. [P:(DE-HGF)0] ; Ott, R. [P:(DE-Juel1)VDB5554] ; Hollmann, E. [P:(DE-Juel1)VDB8300] ; Klein, N. [P:(DE-Juel1)VDB5428]