BICH, D. H. Non-linear buckling analysis of functionally graded shallow spherical shells. Vietnam Journal of Mechanics, Hanoi, Vietnam, v. 31, n. 1, p. 17–30, 2009. DOI: 10.15625/0866-7136/31/1/5491. Disponível em: https://vjs.ac.vn/index.php/vjmech/article/view/5491. Acesso em: 19 apr. 2024.