Improvement of servo performance via nonlinear feedback control in hard disk drive servo systems. - Vaithianathan Venkataramanan; Ben M. Chen; Tong Heng Lee; Guoxiao Guo (CDC, 2000)

Design and implementation of discrete-time composite nonlinear feedback law for a hard disk drive. - Vaithianathan Venkataramanan; Kemao Peng; Ben M. Chen; Tong Heng Lee (CDC, 2001)

Composite nonlinear feedback control for linear systems with input saturation: theory and an application. - Ben M. Chen; Tong Heng Lee; Kemao Peng; Vaithianathan Venkataramanan (IEEE Trans. Autom. Control., 2003)

Discrete-time composite nonlinear feedback control with an application in design of a hard disk drive servo system. - Vaithianathan Venkataramanan; Kemao Peng; Ben M. Chen; Tong Heng Lee (IEEE Trans. Control. Syst. Technol., 2003)