1. Avakyan, S. V., Drobzhev, V. I., and Krasnov, V. M.
Waves and upper atmosphere radiation (in Russian), (Alma-Ata, 1981).
2. Bakay, A. S., Ivanov, V. P., Karvetsky, V.L., Korenkova, N. A., Litvinov, Yu. G., Pelenitsin, G. M., Podyachy, Yu. J., Solodovnikov, G. K., Taran V. I., Hachikyan, V. S., and Yakovets, A. F. (1980), The space-time structure of wave disturbances in ionosphere (in Russian), Volnovye vozm. v. atmosph. (Danilov A. D. — ed. Alma-Ata), pp. 50–64.
3. Benjamin, T. (1966), Internal wave of finite amplitude and permanent form, J. Fluid. Mech. 25, 241–270.
4. Bezruchenko, L. I., Novichenkova, E. S., and Husametdynov, S. S. (1985), The investigation of the ionosphere fine structure by the vertical sonding method (in Russian), Ionosph. i soln.-zemn. svyazi. Alma-Ata, pp. 43–59.
5. Breeding, R. J. (1972), A nonlinear model of the break-up of internal gravity waves due to their exponential growth with height, J. Geoph. Res. 77, 2681–2692.