1. V. V. Belikovich, E. A. Benediktov, G. G. Getmantsev, et al., Izv. Vyssh. Uchebn., Zaved., Radiofiz.,18, No. 4, 516 (1975).
2. G. G. Getmantsev, L. M. Erukhimov, É. E. Mityakova, et al., Izv. Vyssh. Uchebn. Zaved., Radiofiz.,19, No. 4, 505 (1976).
3. E. E. Mityakova, E. N. Myasnikov, and A. V. Rakhlin, Izv. Vyssh. Uchebn. Zaved. Radiofiz.,20, No. 6, 939 (1977).
4. S. A. Bowhill, Radio Sci.,9, No. 11, 1052 (1974).
5. V. V. Vas'kov and A. V. Gurevich, Izv. Vyssh. Uchebn. Zaved., Radiofiz.,18, No. 9, 1261 (1975).