1. Sinusoidal excitation of a system with bilinear hysteresis;Caughey;American Society of Mechanical Engineers, Journal of Applied Mechanics,1960
2. Vibration of elastic systems taking account ofe nergy dissipation in the material;Pisarenko;WADD Technical Documentary Report No. 60-582,1962
3. Periodic response of a general yielding structure;Jennings;American Society of Civil Engineers, Journal of the Engineering Mechanics Division,1964
4. Equivalent viscous damping for yielding structures;Jennings;American Society of Civil Engineers, Journal of the Engineering Mechanics Division,1968
5. The steady-state response of the double bilinear hysteretic model;Iwan;American Society of Mechanical Engineers, Journal of Applied Mechanics,1965