1. Stability of structures with intermediate filters;Chawla;J. Hydraul. Div., ASCE,1975
2. Stability of barrages with downstream subsidiary weirs, I and II;Elganainy;Bull. Fac. Eng., Alexandria Univ.,1984
3. Stability of hydraulic structures with intermediate filter and single cut-off;Hammad,1983
4. A hydrodynamic theory of water movement towards covered drains with application to some field problems;Hammad,1957
5. Groundwater and seepage;Harr,1962