Authors
Yu I Gorobets
Physical and Mathematical Faculty of the National Technical University of Ukraine "Kyiv Polytechnic Institute" of Kyiv, 03057, Peremohy av., 37, Kyiv, Ukraine
S A Reshetnyak
Physical and Mathematical Faculty of the National Technical University of Ukraine "Kyiv Polytechnic Institute" of Kyiv, 03057, Peremohy av., 37, Kyiv, Ukraine
T A Khomenko
Physical and Mathematical Faculty of the National Technical University of Ukraine
"Kyiv Polytechnic Institute" of Kyiv, 03057, Peremohy av., 37, Kyiv, Ukraine
