Kovivchak, Yaroslav     Analysis of electromagnetic processes in a turbogenerator with equivalent stator tooth zones at no-load [Текст] / Yaroslav Kovivchak // Computational problems of electrical engineering / Lviv Polytechnic nat. univ. ; ed.-in-chief Yuriy Bobalo. — Lviv : lviv Polytechnic nat. univ., 2012. — P. 45-53.