1. Invariant Imbedding and Radiative Transfer in Slabs of Finite Thickness;Bellman,1963
2. An Introduction to Invariant Imbedding;Bellman,1975
3. The Mathematics of Radiative Transfer;Busbridge,1960
4. Radiative Transfer;Chandrasekhar,1960
5. Computation of the asymptotic states for linear half space kinetic problem;Coron;Transport Theory Statist. Phys.,1990