1. Diffuse reflection of light by a foggy medium;Ambarzumian;Dokl. Akad. Nauk SSSR,1943
2. Radiative Transfer;Chandrasekhar,1950
3. Invariant imbedding and mathematical physics—I: Particle processes;Bellman;J. Math. Phys.,1960
4. Invariant imbedding and neutron transport in a rod of changing length;Bellman,1960
5. An Introduction to Transport Theory;Wing,1962