Reliability-based critical earthquake load models. Part 2: Nonlinear structures. J. Sound Vib., 287, 883-900.A.M. Abbas, C.S. Manohar, Reliability-based critical earthquake load models. Part 2: nonlinear structures, Journal of Sound and Vibration 287 (4+5) (2005) 883-900; doi:10.1016/...