1. Useful approximations in Wiener-Hopf problems;Carrier;J. Appl. Phys.,1959
2. Energy transfer by radiation and conduction;Lick,1963
3. Radiation through a foggy atmosphere;Schuster;Astrophys. J.,1905
4. Über das Gleichgewicht der Sonnenatmosphere;Schwarzschild;Gott. Nachr.,1906
5. Radiative Transfer;Chandrasekhar,1950