1. M. Born and E. Wolf, Foundations of Optics [Russian translation], Izd. Nauka, Moscow (1970).
2. S. Chandrasekar, Transfer of Radiant Energy [Russian translation], IL, Moscow (1953).
3. L. S. Dolin, Izv. VUZ., Radiofiz.,7, No. 3, 559 (1964).
4. V. I. Tatarskii, Propagation of Waves in a Turbulent Atmosphere [in Russian], Izd. Nauka, Moscow (1967).