1. Dynamics of Fluids in Porous Media;Bear,1972
2. The One-dimensional Heat Equation;Cannon,1984
3. A class of nonlinear, non-classical parabolic equations;Cannon;J.D.E.,1988
4. Partial Differential Equations of Parabolic type;Friedman,1964
5. Theory of Ground Water Movement;Kochina,1962