1. V. P. Shestopalov, L. N. Litvinenko, S. A. Masalov, and V. G. Sologub, The Diffraction of Waves by Lattices [in Russian], Kharkov State Univ., Kharkov (1973).
2. S. A. Masalov and É. A. Yakovlev, Opt. Spektrosk.,43, No. 6, 1129 (1977).
3. E. V. Jull and G. R. Ebbeson, IEEE Trans. Antennas Propag.,25, No. 4, 565 (1977).
4. ?Radio electronics overseas,? Inf. Byull., No. 7, 22 (1978).
5. ?High-frequency radio electronics,? Ekspress-Inf., No. 12, 5 (1978).