%0 Journal Article %T ENERGY OPTIMIZATION METHOD OF MAIN PARAMETERS OF TRACTORS %A Khafizov, K.. %A Khafizov, R.. %K the parameters of tractor, weight, power, optimization, a mathematical model of the unit, total energy consumption. %J Vestnik of Kazan State Agrarian University %D 2015 %N 10 %P 6 %I Kazan state agrarian University