1. R. Mittra, ed.,Computer Techniques for Electromagnetics, Pergamon Press, London (1973).
2. D. M. Sazonov,SHF Antennas and Devices [in Russian], Vysshaya Shkola, Moscow (1988).
3. G. A. Erokhin, O. V. Chernyshev, N. D. Kozyrev, and V. G. Kocherzhevsky,Antenna-Feeder Devices and Radio Wave Propagation [in Russian], Radio i Svyaz’, Moscow (1996).
4. A. N. Tikhonov and V. Ya. Arsenin,Methods for Solving Ill-Posed Problems [in Russian], Nauka, Moscow (1986).
5. S. I. Éminov,Radiotekh. Électron.,38, No. 12, 2160 (1993).