TY JOUR TI Determination of the optimal position of grain crusher boot screen of the impulse-reflective action KW a crusher KW a boot screen KW product quality KW capacity KW power consumption KW factors JO Vestnik of Kazan State Agrarian University AU Bulatov , S.. AU Savinykh, P.. AU Mironov, K.E. PY 2014 IS 8 PB Kazan state agrarian University