Gerasymiak, Rostyslav     Computer-aided design system for technical and economical comparison of crane electrical drives [Текст] / Rostyslav Gerasymiak, Viktor Busher, Svitlana Savych, Liudmyla Shvets // Computational problems of electrical engineering / Lviv Polytechnic nat. univ. ; ed.-in-chief Yuriy Bobalo. — Lviv : lviv Polytechnic nat. univ., 2012. — P. 21-25.