1. “The Influence of Capillarity on the Flow of Air and Water in a Porous Medium,”;ADRIAN,1964
2. Impedance to infiltration by pressure build-up ahead of the wetting front;ADRIAN;J. Geophys. Res.,1966
3. “Nonlinear Partial Differential Equations in Engineering,”;AMES,1964
4. “Dynamics of Fluids in Porous Media.”;BEAR,1972
5. BRUSTKERN, R. L. (1970). “An Analytical Treatment of Two-Phase Flow during Infiltration,” 105 pp. Ph.D. Thesis, Dep. of Civil Eng., Colorado State Univ., Fort Collins, Colorado.