1. V. E. Zuev, Propagation of Laser Radiation in the Atmosphere [in Russian], Radio i Svyaz', Moscow (1981).
2. D. Stroben (ed.), Propagation of a Laser Beam in the Atmosphere [Russian translation], Mir, Moscow (1981).
3. M. Mann, Raketnaya Tekhnika i Kosmonavtika,14, No. 5, 8 (1976).
4. G. Emanuel, N. Cohen, and T. A. Jacobs, J. Quantitative Spectroscopy Radiative Trans.,13, 1365 (1973).
5. N. G. Basov, V. S. Kazakevich, and I. B. Kovsh, Kvantovaya Élektron.,9, No. 4, 763 (1982).