1. E. M. Sparrow and N. Cur, J. Heat Transfer May: 232 (1976).
2. G. R. Cunnington and C. L. Tien, Adv. Cryog. Eng. 18:103 (1972); C. K. Chan and C. L. Tien, Combined Radiation and Conduction in Packed Spheres, Proc. 5th Int. Heat Transfer Conf., Vol. 1, R2.2, p. 72 (1974).
3. M. G. Kaganer, Thermal Insulation in Cryogenic Engineering (Israel Prog. Sci. Transi., Jerusalem, 1969), pp. 21?24.
4. M. Kerker, The Scattering of Light (Academic Press, New York, 1969), pp. 286?289.
5. K. Y. Wang and C. L. Tien, J. Quant. Spectrosc. Radiat. Transfer 30:213 (1983).