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2. Ivanov, V.V.: Transfer Theory and the Spectra of Calestial Objects. Nauka, Moscow (1969). (in Russian)
3. Mihalas, D.: Stellar Atmospheres. Freeman, San Francisco (1978)
4. Chetverushkin, B.N.: Mathematical Modeling of Problems in the Dynamics of a Radiating Gas. Nauka, Moscow (1985). (in Russian)
5. Bell, G.I., Glasstone, S.: Nuclear Reactor Theory. Van Nostrand Reinhold Co., New York (1970)