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, may 2023. ISSN 2956-5839. Available at: <https://cames.ippt.pan.pl/index.php/cames/article/view/1301>. Date accessed: 23 dec. 2024.