1. ‘Coupled rocking and sliding oscillations of rigid circular footings’, Proc. Int. Symp. on Wave Propagation and Dynamic Properties of Earth Materials, University of New Mexico Press, Albuquerque, pp. 139–148 (1967).
2. ‘On the dynamic response of foundation systems’, Ph. D. Dissertation, Rice University, Houston, Texas, 1968.
3. and , Vibration of Soils and Foundations, Prentice-Hall, New York, ch. 6 and 7, 1970.