1. Evaluating tilt of gravity retaining walls during earthquakes;Al-Homoud,1990
2. Tilting response of centrifuge-modeled gravity retaining wall to seismic shaking;Andersen,1987
3. Cyclic triaxial testing of 120200 leighton buzzard sand;Gately,1985
4. Nonlinear soil structure interaction;Isenberg,1980
5. Finite element dynamic model for infinite media;Lysmer;J. Engng. Mech. Division, ASCE,1969