Referred Journal papers:

S. S. Ge, C. Yang, S. -L Dai, Z. Jiao, T. H. Lee, Robust Adaptive Control of a Class of Nonlinear Strict-Feedback Discrete-Time Systems with Exact Output Tracking, Automatica, provisional accepted.

C. Yang, S. S. Ge, T. H. Lee, Output Feedback Adaptive Control of a Class of Nonlinear Discrete-Time Systems with Unknown Control Directions, Automatica, vol 45, no 1, pp. 270-276, January 2009.[PDF]

C. Yang, S. S. Ge, C. Xiang, T. Y. Chai and T. H. Lee, Output Feedback NN Control for two Classes of Discrete-time Systems with Unknown Control Directions in a Unified Approach, IEEE Transactions on Neural Networks, vol. 19, no. 11, pp.1873-1886, November 2008. [PDF]

S. S. Ge, C. Yang and T. H. Lee, Adaptive Robust Control of a Class of Nonlinear Strict-feedback Discrete-time Systems with Unknown Control Directions, Systems & Control Letters, vol. 57, no. 11, pp. 888–895, April 2008. [PDF]

S. S. Ge, C. Yang and T. H. Lee, Adaptive Predictive Control Using Neural Network for a Class of Pure-feedback Systems in Discrete-time, IEEE Transactions on Neural Networks, vol. 19, no. 9,1599-1614,October 2008. [PDF]

Referred Conference papers:

C. Yang, S.-L. Dai, S. S. Ge, T. H. Lee, Adaptive Asymptotic Tracking Control of a Class of Discrete-Time Nonlinear Systems with Parametric and Nonparametric Uncertainties, to appear in Proceedings of 2009 American Control Conference, St. Louis, Missouri, USA, June 10-12, 2009.

S. S. Ge, C. Yang, S.-L. Dai, T. H. Lee, Adaptive Control of a Class of Strict-Feedback Discrete-Time Nonlinear Systems with Unknown Control Gains and Preceded by Hysteresis, to appear in Proceedings of 2009 American Control Conference, St. Louis, Missouri, USA, June 10-12, 2009.

L. F. Zhai, T. Chai, C. G. Yang, S. S. Ge and T. H. Lee, Stable Adaptive Neural Network Control of MIMO Nonaffine Nonlinear Discrete-Time Systems, Proceedings of the 47th IEEE Conference on Decision and Control, pp. 3646-3651, Cancun, Mexico, December 9-11, 2008. [PDF]

C. Yang, L. Zhai, S. S. Ge, T. Y. Chai and T. H. Lee, Adaptive Model Reference Control of a class of MIMO Discrete-time Systems with Compensation of Nonlinear Uncertainty, Proceedings of 2008 American Control Conference, Seattle, pp. 4111-4116, Washington, USA, June 11-13, 2008. [PDF]

L. Zhai, C. Yang, S. S. Ge, T. Y. Chai and T. H. Lee, Direct Adaptive Neural Network Control of MIMO Nonlinear Discrete-Time Systems using Discrete Nussbaum Gain, Proceedings of IFAC World Congress, pp. 6508-6512, Seoul, Korea, July 6-11, 2008.[PDF]

S. S. Ge, C. G. Yang and T. H. Lee, Output Feedback NN Control of NARMAX Systems using Discrete Nussbaum Gain, Proceedings of 2007 IEEE Conference on Decision and Control, pp. 4681-4686, New Orleans, Louisiana USA, 12-14, December, 2007. [PDF]

S. S. Ge, C. G. Yang and T. H. Lee, Adaptive Neural Networks Control for a Class of Pure-feedback Systems in Discrete-time, Proceedings of 2007 IEEE Multi-conference on Systems and Control, pp. 126-131, Singapore, 1-3 October, 2007 [PDF]

C. G. Yang, S. S. Ge, and T. H. Lee, Adaptive Predictive Control of a Class of Strict-Feedback Discrete-Time Systems Using Discrete Nussbaum Gain, Proceedings of 2007 American Control Conference, pp. 1209-1214, New York, USA, July 11-13, 2007 [PDF]