1. AASHTO, Standard Specifications for Seismic Design of Highway Bridges, 1991, American Association of State Highway and Transportation Officials, Washington, D.C.
2. and , 1993, Current Research at MRPRA related to Seismic Isolation of Buildings, International Post-SMiRT Conference Seminar on Isolation, Energy Dissipation and Control of Vibrations of Structures, Capri (Napoli), Italy.
3. Optimum Characteristics of Isolated Structures
4. and , 1975, Dynamics of Structure, McGraw-Hill Inter. ISBN 0–07–113241–4.
5. 1956, Mechanical Vibrations, Mc Graw-Hill N.Y.