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Volodymyr Malashchenko
Institute of Mechanical Engineering and Transport, Lviv Polytechnic National University,
Department of Technical Mechanics and Engineering GraphicsLviv, Ukraine
Roman Protasov
Faculty of Mechanical Engineering, Slovak University of Technology in Bratislava,
Institute of Applied Mechanics and Mechatronics
Bratislava, Slovakia
Olena Lanets
Institute of Mechanical Engineering and Transport, Lviv Polytechnic National University,
Department of Technical Mechanics and Engineering GraphicsLviv, Ukraine