TY JOUR TI MATHEMATICAL DESCRIPTION OF THE PROCESS OF CARS MAINTENANCE UNDER THE PERFORMANCE OF LUBRICANT AND FUELING OPERATIONS KW lubricant and filling operations KW technical means KW maintenance process JO Bulletin of KSAU AU Khabardina, A.V. AU Chubareva, M.V. AU Khabardin, V.N. PY 2018 IS PB Krasnoyarsk State Agrarian University