I.M. Lerner, G.I. Il'in

G. I. Ilyin, A. G. Ilyin

А.А. Monakov - Dr.Sc. (Eng.), Professor, Department of Radio Engineering, Saint Petersburg State University of Aerospace Instrumentation. E-mail: a_monakov@mail.ru М.Yu. Nesterov - Ph.D. (Eng.), Head of Department, JSC «Ural Design Bureau «Detail» (Kamensk-Uralskii); Associate Professor, Ural Federal University (Ekaterinburg). E-mail: mn@list.ru