Emtsev, V. V. [P:(DE-HGF)0] ; Ehrhart, P. [P:(DE-Juel1)VDB3072] ; Emtsev, K. V. [P:(DE-HGF)0] ; Poloskin, D. S. [P:(DE-HGF)0] ; Dedek, U. [P:(DE-Juel1)VDB34566]