TY JOUR TI THEORETICAL STUDY OF TERMS FOR ENSURING AN UNIFORM MOVEMENT AND SUBSTANTIATION OF BASIC PARAMETERS OF A SELF-PROPELLED SMALL-SIZED ROTARY TILLER WITH A VERTICAL AXIAL FOR HANDLING KW rotor KW stability of movement KW vertical tillage mill KW slipping of driving wheels KW soil JO Vestnik of Kazan State Agrarian University AU Kupryashkin, V.F. AU Shlyapnikov, M.G. AU Chatkin, M.N. AU Glotov, S.V. AU Kupryashkin, V.V. AU Chetverov, N.A. PY 2020 IS 14 PB Kazan state agrarian University