Klushin, A. M. [P:(DE-Juel1)VDB5527] ; Siegel, M. [P:(DE-Juel1)VDB3105] ; Borovitskii, S. I. [P:(DE-HGF)0] ; Gelikonova, V. D. [P:(DE-HGF)0] ; Starodubrovski, R. S. [P:(DE-HGF)0] ; Ainitdinov, K. A. [P:(DE-HGF)0] ; Numssen, K. [P:(DE-HGF)0]