KHIEM, N. T.; HANG, P. T. Spectral analysis of multiple cracked beam subjected to moving load. Vietnam Journal of Mechanics, Hanoi, Vietnam, v. 36, n. 4, p. 245–254, 2014. DOI: 10.15625/0866-7136/36/4/3369. Disponível em: https://vjs.ac.vn/index.php/vjmech/article/view/3369. Acesso em: 9 dec. 2021.