Free Vibration Analysis of Beam Structure Utilized Boundary Element Method and Finite Element Method. International Journal of Current Engineering and Technology, [S. l.], v. 5, n. 3, p. 2099–2104, 2015. Disponível em: https://ijcet.evegenis.org/index.php/ijcet/article/view/2355. Acesso em: 12 apr. 2026.