Huan, Duong Thanh, Luu Quynh Huong, and Nguyen Tien Khiem. “Modal Analysis of Cracked Beam With a Piezoelectric Layer”. Vietnam Journal of Mechanics 43, no. 2 (June 16, 2021): 105–120. Accessed April 25, 2024. https://vjs.ac.vn/index.php/vjmech/article/view/15648.