Siberian Federal University of Russia, Novosibirsk State University, Kazan Federal University, Tomsk State University, Tbilisi State University, Institute of Control Systems of the Azerbaijan National Academy of Sciences, Siberian Federal University, Belgorod State National Research University of the Russian Federation, Institute of Computational Mathematics and Mathematical Geophysics of the Siberian Branch of the Russian Academy of Sciences, Yanka Kupala Grodno State University (Republic of Belarus);