1. Sobolev Spaces;Adams,1975
2. C. Bardos, F. Golse, B. Perthame, and R. Sentis, The nonaccretive radiative transfer equations. Existence of solutions and Rosseland approximation, to appear.
3. Interpolation Spaces;Bergh,1976
4. Semigroups of Operators and Approximation;Butzer,1967
5. Théorème de traces pour des espaces de fonctions de la neutronique;Cessenat;C. R. Acad. Sci. Paris,1985