Zhironkin S.(Institute of Trade and Economy, Siberian Federal University, 79 Svobodny Avenue, Krasnoyarsk, 660041, Russian Federation, School of Core Engineering Education, National Research Tomsk Polytechnic University, 30 Lenina Street, Tomsk, 634050, Russian Federation, Department of Engineering and Economy, Mezhdurechensk Branch, T.F. Gorbachev Kuzbass State Technical University, 36 Stroiteley Street, Kemerovo Region, Mezhdurechensk, 652881, Russian Federation)
Szurgacz D.(Center of Hydraulics DOH Ltd., Bytom, 41-906, Poland)