by Zubkov, A.N., Koba, S.I., Dobryansky, N.S., Kashin, S.V., Gavrilov, V.S., Kempa, Y.M., Naoumets, N.A.
Published in 2004 14th International Crimean Conference "Microwave and Telecommunication Technology" (IEEE Cat. No.04EX843) (2004)