ANH, N. D.; HAI, N. Q.; SCHIEHLEN, W. Extended averaged equation method and application on analyzing some nonlinear deterministic vibrations. Vietnam Journal of Mechanics, Hanoi, Vietnam, v. 31, n. 1, p. 1–16, 2009. DOI: 10.15625/0866-7136/31/1/5490. Disponível em: https://vjs.ac.vn/index.php/vjmech/article/view/5490. Acesso em: 19 apr. 2024.