1. Subsurface drainage solutions by Galerkin's method;Dass,1974
2. Drain-spacing formula;Dumm;Agric. Eng.,1954
3. Groundwater movement;Glover,1964
4. Computation of the unsteady two-dimensional free surface of groundwater by the finite-element method;Karamouzis;J. Hydrol.,1984
5. A study of non-steady groundwater flow with special reference to a reservoir-coefficient;Kraijenhoff van de Leur;Ingenieur,1958