1. A. D. Zamorskii, Atmospheric Ice, Hoarfrost, Glaze, Snow, and Hail (Akad. Nauk SSSR, Moscow, 1955) [in Russian].
2. B. J. Mason, The Physics of Clouds, 2nd ed. (Clarendon, Oxford, 1971; Gidrometizdat, Leningrad, 1961).
3. N. S. Shishkin, Clouds, Precipitations, and Thunderstorm Electricity (Gidrometizdat, Leningrad, 1961) [in Russian].
4. R. R. Rogers, A Short Course in Cloud Physics, 2nd ed. (Pergamon, Oxford, 1979; Gidrometeoizdat, Leningrad, 1979).
5. I. P. Mazin and S. M. Shmeter, Clouds: Structure and Physics of Formation (Gidrometeoizdat, Leningrad, 1983) [in Russian].