1. American Association of State Highway and Transportation Officials (1991). “Guide specifications for seismic isolation design.” Washington, D.C.
2. Buckle, I.G. and Mayes, R.L. (1990). “Seismic isolation history, application, and performance-a world view.” Earthquake Spectra, 6(2), 161–201.
3. Chalhoub, M.S. and Kelly, J.M. (1990). “Effect of compressibility on the stiffness of cylindrical base isolation bearings.” Int. J. Solids Struct., 26(7), 743–760.
4. Cho, D.M. and Retamal, E. (1993). “The Los Anglees County Emergency Operations Center on high damping rubber bearings to withstand an earthquake bigger than the big one.” Proc. ATC-17–1 Seminar on Seismic Isolation, Passive Energy Dissipation, and Active Control, March, San Francisco, CA.
5. Report No. NCEER 91–0027;MC Constantinou,1991