LEE, In-Won; JUNG, Hyung-Jo; KIM, Man-Cheol. Efficient free vibration analysis of large structures with close or ultiple natural frequencies. Part II: Damped structures. Computer Assisted Methods in Engineering and Science, [S. l.], v. 6, n. 3-4, p. 415–424, 2023. Disponível em: https://cames3.ippt.pan.pl/index.php/cames/article/view/1301. Acesso em: 26 jan. 2025.