1. Solution of Radiation Transfer Scattering Medium Illuminated by a Point Source;Lenoble,1960
2. The Fundamental Methods of Solving Point Source Problems in Discrete-Space Radiation Transfer;Preisendorfer,1959
3. The light field in deep layers of a turbid medium illuminated by a narrow beam (in Russian);Romanova;Izv. Akad. Nauk SSSR Ser. Fiz Atmosfer. i Okeana,1968