1. A. Valetos and N. Newmark, “Proceedings of the 2nd world conference on earthquake engineering,” 1960, pp. 895–912.
2. Random vibration of hysteretic, degrading systems;Baber;J. Eng. Mech. Div.,1981
3. Random vibration of degrading, pinching system;Baber;J. Eng. Mech.,1986
4. R. R. W. Clough and S. Johnston, “Effect of stiffness degradation on earthquake ductility requirements,” in Second Japan national conference on earthquake engineering, 1966, pp. 227–232.
5. S. A. Mahin, V. V. Bertero, M. B. Atalay, and D. Rea, Rate of loading effects on uncracked and repaired reinforced concrete members. Earthquake Engineering Research Center, University of California, 1972.