Shapovalov, Yuriy     Frequensy symbolic models (FSMs) of linear periodically time-variable circuits witn the one comolex variable [Текст] / Yuriy Shapovalov, Bondan Mandziy, Dariya Smal, Nadiya Velnyk // Computational problems of electrical engineering : 13 Intern. workshop, Grybow, Poland, Sept. 5-8, 2012 : book of abstr. / Warsaw Univ. of Tecnhology, Lviv Polytechhic Nat. Univ., Tech. Univ., of Lodz, Univ. of West Bohemia, Warsaw Univ. of Life Sciences. — [S. l.], 2012. — P. 22.