1. Nonlinear oscillations;Nayfeh,1979
2. Bifurcations in a parametrically excited nonlinear oscillator;Bajaj;Int J NonLinear Mech,1987
3. Bifurcations of nonlinear oscillation system under combined parametric and forcing excitation;Zhang;Acta Mechanica Sinica,1991
4. Local and global bifurcations of valve mechanism;Zhang;Nonlinear Dyn,1994
5. Further studies for nonlinear dynamics of one dimensional crystalline beam (Overseas Edition);Zhang;Acta Physica Sinica,1996