Malyar, Vasyl     Investigation of the influence of capacitor in the excitation winding circuit of a synchronous motor on its starting torque [Текст] / Vasyl Malyar, Iryna Dobushovska // Computational problems of electrical engineeringVol. 2. Vol. 2. N. 1 ; Lviv Polytechnic Nat. Univ. ; ed.-in-chief Yuriy Bobalo - Lviv : Lviv Polytechnic nat. univ. , 2012. — P. 81-84.