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2. I. V. Baum and O. A. Louchev, Conductive length in heat exchange models of the shells and truss constructions, Int. J. Heat Mass Transfer (to be published).
3. The methods of calculations of solar radiation characteristics;Sivkov,1968
4. Modelling solar direct and diffused spectral radiation in the atmosphere;Guzzi,1990
5. Thermal Radiation Heat Transfer;Siegel,1972