1. V. Ya. Ryadov and G. A. Sharonov, Radiotekh. élektron.,11 No. 6, 1037 (1966).
2. N. I. Furashov, Opt. Spektrosk.,20, No. 3, 427 (1966).
3. D. E. Burch, J. Opt. Soc. Am.,58, No. 10, 1383 (1968).
4. S. A. Zhevakin, V. Ya. Ryadov, and N. I. Furashov, Reports to the XI All-Union Conference on Radio Wave Propagation, Part 2 [in Russian], gos. Univ., Kazan' (1975), p. 5.
5. V. V. Fomin, Molecular Absorption in the Infrared Transparency Windows [in Russian], Nauka, Novosibirsk (1986).