Huan, Tran Thien, and Ho Pham Huy Anh. “Comparative Stable Walking Gait Optimization for Small-Sized Biped Robot Using Meta-Heuristic Optimization Algorithms”. Vietnam Journal of Mechanics 40, no. 4 (December 27, 2018): 407–424. Accessed December 5, 2025. https://vjs.ac.vn/vjmech/article/view/12294.