1.Khang NV, Cau TM. Calculating periodic vibrations of nonlinear autonomous multi-degree-of-freedom systems by the incremental harmonic balance method. Vietnam J. Mech. [Internet]. 2004 Oct. 1 [cited 2025 Nov. 8];26(3):157-66. Available from: https://vjmech.vast.vn/vjmech/article/view/5700