M.V. Nikitin – Ph.D. (Phys.-Math.), Research Scientist,
Kotel’nikov Institute of Radio Engineering and Electronics of RAS (Moscow)
E-mail: nikitin@cplire.ru
V.Ya. Pokrovskii – Dr.Sc. (Phys.-Math.), Head of the Laboratory,
Kotel’nikov Institute of Radio Engineering and Electronics of RAS (Moscow)
E-mail: pok@cplire.ru
S.G. Zybtsev – Ph.D. (Phys.-Math.), Senior Research Scientist,
Kotel’nikov Institute of Radio Engineering and Electronics of RAS (Moscow)
E-mail: zybt@cplire.ru (Moscow)