1. Infiltration of water into a nonuniform soil;Bouwer;J. Irrig. Drain. Div. Amer. Soc. Civil Eng.,1969
2. Brakensiek , D. L. Storage flood routing without coefficients Beltsville, Md. 1966
3. Estimating the effective capillary pressure in the Green and Ampt infiltration equation;Brakensiek;Water Resour. Res.,1977
4. Brooks , R. H. A. T. Corey Hydraulic properties of porous media Fort Collins 1964
5. Mathematical models of catchment behavior;Dawdy;J. Hydraul. Div. Amer. Soc. Civil Eng.,1965