1.
Dao NV, Dinh NV, Chi TK. Van der Pol’s oscillator under the parametric and forced excitations. Vietnam J. Mech. [Internet]. 2007 Sep. 22 [cited 2024 Apr. 26];29(3):207-19. Available from: https://vjs.ac.vn/index.php/vjmech/article/view/5533