Design and experiment of add-on track following controller for optical disc drives based on robust output regulation. - Hyungbo Shim; Hyungjong Kim 003; Chung Choo Chung (ACC, 2004)

Adaptive Output Regulation for the Rejection of a Periodic Disturbance With an Unknown Frequency. - Won Hee Kim; Hyungjong Kim 003; Chung Choo Chung; Masayoshi Tomizuka (IEEE Trans. Control. Syst. Technol., 2011)

Adaptive Add-On Output Regulator for Rejection of Sinusoidal Disturbances and Application to Optical Disc Drives. - Hyungjong Kim 003; Hyungbo Shim; Nam Hoon Jo (IEEE Trans. Ind. Electron., 2014)

Adaptive Regulation to Nominal Response for Uncertain Mechanical Systems and Its Application to Optical Disk Drive. - Gyunghoon Park; Hyungjong Kim 003 (IEEE Trans. Ind. Electron., 2018)