LIEN, Tran Van; HAO, Trinh Anh. Determination of mode shapes of a multiple cracked beam element and its application for free vibration analysis of a multi-span continuous beam. <b>Vietnam Journal of Mechanics</b>, Hanoi, Vietnam, v. 35, n. 4, p. 313–323, 2013. DOI: 10.15625/0866-7136/35/4/2520. Disponível em: https://vjmech.vast.vn/vjmech/article/view/2520. Acesso em: 8 nov. 2025.