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Authors: |
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E. L. Pankratov - Department of Applied Mechanics, Physics and Higher Mathematics, Nizhny Novgorod State Agrotechnical University, 97 Gagarin Avenue, Nizhny Novgorod, 603950, Russia ; Department of Engineering and Technology, Nizhny Novgorod Institute Railway Transport, 3 Komsomol Square, Nizhny Novgorod, 603950, Russia
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