1. Radiative Transfer;Chandrasekhar,1960
2. V.V. Ivanov, Transfer of Radiation in Spectral Lines, National Bureau of Standards Special Publication 385, National Bureau of Standards, Washington D.C. 1973 (English edition of Radiative Transfer and the Spectra of Celestial Bodies, Nauka, Moskva, 1969).
3. Linear Transport Theory;Case,1967
4. On the evaluation of H and X functions
5. Two new analytic approximations of the Chandrasekhar's H function for isotropic scattering