2012
The further result on global practical tracking for high-order uncertain nonlinear systems.
J. Syst. Sci. Complex., 2012

2011
Global practical tracking by output-feedback for nonlinear systems with unknown growth rate.
Sci. China Inf. Sci., 2011

2010
Global Practical Tracking for High-Order Uncertain Nonlinear Systems with Unknown Control Directions.
SIAM J. Control. Optim., 2010