TY JOUR TI MATHEMATICAL MODEL DEVELOPMENT OF “TECHNOLOGICAL EQUIPMENT-FREIGHT” SYSTEM OF THE ROTARY LOGGER IN THE FREIGHT PULLING UP MODE KW rotary loggers KW manipulator KW mathematical models JO Bulletin of KSAU AU Poletaykin, V.F. AU Goncharov, I.A. PY 2014 IS PB Krasnoyarsk State Agrarian University