Decentralized tracking of a class of uncertain interconnected nonlinear systems using filter-driven approximators. - Yun Ho Choi; Sung Jin Yoo; Hyoung Oh Kim (ASCC, 2017)

Approximation-based disturbance observer approach for adaptive tracking of uncertain pure-feedback nonlinear systems with unmatched disturbances. - Hyoung Oh Kim; Sung Jin Yoo (Int. J. Syst. Sci., 2017)

Decentralised disturbance-observer-based adaptive tracking in the presence of unmatched nonlinear time-delayed interactions and disturbances. - Hyoung Oh Kim; Sung Jin Yoo (Int. J. Syst. Sci., 2018)