1. “Hydraulics of Groundwater.”;Bear,1979
2. Bruch, J. C., Jr. (1977). Two-dimensional unsteady water flow in unsaturated porous media. In “Proceedings of the First International Conference on Finite Elements in Water Resources,” 3.3–3.19, Pentech Press, Plymouth, England.
3. “Applied Numerical Methods.”;Carnahan,1969
4. “Conduction of Heat in Solids.”;Carslaw,1959
5. A finite difference method for unsteady flow in variably saturated porous media: Application to a single pumping well;Cooley;Water Resour. Res.,1971