Tomchuk, O. V. [P:(DE-HGF)0] ; Bulavin, L. A. [P:(DE-HGF)0] ; Pipich, V. [P:(DE-Juel1)130893] ; Ryukhtin, V. [P:(DE-HGF)0] ; Ivankov, O. I. [P:(DE-HGF)0] ; Aksenov, V. L. [P:(DE-HGF)0] ; Avdeev, M. V. [P:(DE-HGF)0]