The iterative homotopy harmonic balance method for conservative Helmholtz-Duffing oscillators. - Zhongjin Guo; Andrew Y. T. Leung (Appl. Math. Comput., 2010)

The multi-parameter homotopy harmonic balance method for steady state problems. - Andrew Y. T. Leung; Zhongjin Guo; T. C. Fung (Int. J. Comput. Math., 2010)

Feed Forward Residue harmonic Balance Method for a Quadratic nonlinear oscillator. - Ayt Leung; Zhongjin Guo (Int. J. Bifurc. Chaos, 2011)

Resonance Response of a Simply Supported Rotor-Magnetic bearing System by harmonic Balance. - Andrew Y. T. Leung; Zhongjin Guo (Int. J. Bifurc. Chaos, 2012)

Transition Curves and bifurcations of a Class of fractional Mathieu-Type equations. - Andrew Y. T. Leung; Zhongjin Guo; H. X. Yang (Int. J. Bifurc. Chaos, 2012)

Fractional derivative and time delay damper characteristics in Duffing-van der Pol oscillators. - Andrew Y. T. Leung; Zhongjin Guo; H. X. Yang (Commun. Nonlinear Sci. Numer. Simul., 2013)

Steady State Symmetry Breaking in periodically excited Systems involving Time Delay by harmonic homotopy. - Andrew Y. T. Leung; Zhongjin Guo (Int. J. Bifurc. Chaos, 2013)

Effects of fractional Differentiation Orders on a Coupled Duffing Circuit. - Andrew Y. T. Leung; Zhongjin Guo (Int. J. Bifurc. Chaos, 2013)

Residue harmonic balance solution procedure to nonlinear delay differential systems. - Zhongjin Guo; Xiaoyan Ma (Appl. Math. Comput., 2014)

Hard-Spring Bistability and Effect of System Parameters in a Two-Degree-of-Freedom Vibration System with Damping Modeled by a Fractional Derivative. - Zhongjin Guo; Wei Zhang 084 (Int. J. Bifurc. Chaos, 2016)