1. M. Born and E. Wolf: Principles of Optics, 7th ed., Cambridge University Press, Cambridge, United Kingdom, 1999, ch. 1 and 3.
2. H. Tong and W. H. Giedt: Rev. Scientific Instrum., 1969, vol. 40, pp. 1283–85.
3. E.M. Sparrow and R.D. Cess: Radiation Heat Transfer, Augmented edition, Hemisphere Publishing, Washington, DC, 1978, pp. 35–68.
4. R. Siegel and J.R. Howell: Thermal Radiation Heat Transfer, 3rd ed., Taylor and Francis, Washington, DC, 1992, ch. 4 and 5.
5. M.F. Modest: Radiative Heat Transfer, McGraw-Hill, New York, NY, 1993, ch. 2 and 3.