1. Jennings, P. C., andBielak, J.,Dynamics of Building-Soil Interaction, Bulletin of the Seismological Society of America, Vol. 63, pp. 9–48, 1973.
2. Béliveau, J. G.,The Role of System Identification in Design, Basic Questions of Design Theory, Edited by W. R. Spillers, North-Holland Publishing Company, Amsterdam, Holland, pp. 21–37, 1974.
3. Distefano, N., andRath, A.,System Identification in Nonlinear Structural Seismic Dynamics, Computer Methods in Applied Mechanics and Engineering, Vol. 5, pp. 353–372, 1975.
4. Béliveau, J. G.,Identification of Viscous Damping in Structures from Modal Information, Journal of Applied Mechanics, ASME, Vol.98, pp. 335–339, 1976.
5. Caughey, T. K.,Classical Normal Modes in Damped Linear Dynamic Systems, Journal of Applied Mechanics, ASME, Vol. 27, pp. 269–271, 1960.