1. M. I. Fatkullin, T. I. Zelenova, V. K. Kozlov, A. D. Legen’ka, and T. N. Soboleva, Empirical Models of the Midlatitude Ionosphere (Nauka, Moscow, 1981) [in Russian].
2. J. C. Foster and F. J. Rich, “Prompt Midlatitude Electric Field Effects during Severe Geomagnetic Storms,” J. Geophys. Res. 103, 26 367–26 372 (1998).
3. B. N. Gershman, Ionospheric Plasma Dynamics (Nauka, Moscow, 1974) [in Russian].
4. B. N. Gershman, E. S. Kazimirovskii, V. D. Kokourov, and N. A. Chernobrovkina, Spread-F Phenomenon in the Ionosphere (Nauka, Moscow, 1984) [in Russian].
5. Huang Chao-Song, M. C. Kelley, and D. L. Hyssell, “Nonlinear Rayleigh-Taylor Instabilities, Atmospheric Gravity Waves and Equatorial Spread-F,” J. Geophys. Res. 98, 15 631–15 642 (1993).