Canh, Cao Xuan, Nguyen Thi Anh, Doan Van Toi, and Nguyen Danh Nam. “Optimal Tracking Control Using Discrete Disturbance Observer for Unmanned Surface Vessel under Unknown Disturbances”. International Journal of Innovative Research and Scientific Studies 8, no. 7 (October 1, 2025): 100–111. Accessed December 5, 2025. https://www.ijirss.com/index.php/ijirss/article/view/10405.