Disturbance observer-based robust control for underwater robotic systems with passive joints. - Goo Bong Chung; Kwang Sik Eom; Byung-Ju Yi; Il Hong Suh; Sang-Rok Oh; Wan Kyun Chung; J. O. Kim (Adv. Robotics, 2001)

Fourier series learning of biped walking motion. - Tae-Yong Kuc; Seung-Min Baek; Ho-Gil Lee; J. O. Kim (ISIC, 2002)