Bulavin, L.A. [P:(DE-HGF)0] ; Gordeliy, V. I. [P:(DE-Juel1)VDB482] ; Ivan'kov, O.I. [P:(DE-HGF)0] ; Islamov, A.Kh: [P:(DE-HGF)0] ; Kuklin, A.I. [P:(DE-HGF)0]