TIEN KHIEM, N.; THANH HAI, T. Rayleigh’s quotient for multiple cracked beam and application. Vietnam Journal of Mechanics, Hanoi, Vietnam, v. 33, n. 1, p. 1–12, 2011. DOI: 10.15625/0866-7136/33/1/34. Disponível em: https://vjs.ac.vn/index.php/vjmech/article/view/34. Acesso em: 6 may. 2024.