1. Bhatti M. A. Pister K. S. and Polak E. “Optimal Design of an Earthquake Isolation System ” Report 78/22 Earthquake Engineering Research Center Univ. of California at Berkeley Berkeley CA 1978.
2. Constantinou M. C. “Random Vibration and Optimization of Design of Aseismic Base Isolation Systems ” thesis presented to the Rensselear Polytechnic Institute at Troy NY in 1984 in partial fulfillment of the requirements for the degree of Doctor of Philosophy.
3. Probabilistic Optimum Base Isolation of Structures
4. Optimum design of a first story damping system
5. Crandall S. H. and Mark W. D. Random Vibration in Mechanical Systems Academic Press New York NY 1963.