Tung, Hoang Van, and Nguyen Dinh Duc. “Thermal Buckling of Imperfect Functionally Graded Cylindrical Shells According to Wan-Donnell Model”. Vietnam Journal of Mechanics 30, no. 3 (October 1, 2008): 185 –. Accessed April 26, 2024. https://vjs.ac.vn/index.php/vjmech/article/view/5618.