1. and , ‘Dynamics of soil-base-isolated-structure systems: linear systems’, Report to NSF, Department of Civil Engineering, Drexel University, Sept. 1986.
2. and , ‘Effect of soil-structure interaction on frequencies and damping of base-isolated structures’, Proc. 3rd U.S. nat. conf. earthquake eng. Charleston, S. Carolina (1986).
3. Dynamic behaviour of building-foundation systems
4. ‘Dynamics of structurefoundation systems’, in Structural and Geotechnical Mechanics, Prentice-Hall, Englewood Cliffs, N.J. 1977.
5. Applied Technology Council (ATC), ‘Tentative provisions for the development of seismic regulations for buildings’, Publication ATC3-06, June 1978.