1. Sobolev Spaces;Adams,1975
2. On the eigenfunctions and on the eigenvalues of general elliptic boundary value problems;Agmon;Comm. Pure Appl. Math.,1962
3. Nonhomogeneous linear and quasilinear elliptic and parabolic boundary value problems;Amann,1993
4. Linear and Quasilinear Parabolic Problems, Vol. 1. Abstract Linear Theory;Amann,1995
5. Commutation de l'intersection et des foncteurs d'interpolation;Baouendi;C. R. Acad. Sci. Paris,1967