1. Scattering and absorption of light in planetary atmospheres;Ambartsumyan;Uchen. Zapiski. LGU,1941
2. Radiative Transfer;Chandrasekhar,1960
3. Inverse Problems in Radiative Transfer: Layered Media;Bellman,1964
4. Boundary Value Problems for the Transport Equation;Germogenova,1971
5. Milne Problem with anisotropic scattering;Maslennikov;Trudy MIAN,1968