Dinh NV, Chi TK. Identifying the resonance curve of a system subjected to linear and quadratic parametric excitations (case without damping). Vietnam J. Mech. [Internet]. 1999 Dec. 30 [cited 2024 Apr. 19];21(4):194-202. Available from: https://vjs.ac.vn/index.php/vjmech/article/view/10001