Shunkeyev, K. [P:(DE-HGF)0] ; Kenzhebayeva, А. [P:(DE-HGF)0] ; Sagimbayeva, Sh [P:(DE-HGF)0] ; Syrotych, Y. [P:(DE-H253)PIP1099250] ; Zorenko, Yuriy [P:(DE-H253)PIP1009172]