Wosene Yirga Balcha, and Dawit Gizachew Misikir , translators. “Hierarchical Sliding Mode Control Design for Stabilization of Underactuated Wheeled Acrobot System”. International Journal of Inventive Engineering and Sciences (IJIES), vol. 11, no. 12, Dec. 2024, pp. 7-11, https://doi.org/10.35940/ijies.E7383.11121224.