Korud, Vasyl     The optimal approach of computer techniques usage in the study of theoretical electrical engineering [Текст] / Vasyl Korud, Oleksandra Korud // CPEE 2010: Computational problems of electrical engineering, Sept. 13-16, 2010 : proceedings / Univ. of West Bohemia. — Pilsen : Dragon Print, 2010. — P. 85.