TY JOUR TI Friction accounting in mathematical models of dissipative systems KW friction KW energy KW dissipative systems KW models KW Lagrangian KW dependence JO Vestnik of Astrakhan State Technical University. Series: Management, computer science and informatics AU Vol’nikov, M.I. AU Smogunov, V.. PY 2022 IS PB Astrakhan State Technical University