TOAN, P. T. The homogenization method in the problem of a spherical layered elastic composite hollow. Vietnam Journal of Mechanics, Hanoi, Vietnam, v. 19, n. 3, p. 52–58, 1997. DOI: 10.15625/0866-7136/10060. Disponível em: https://vjs.ac.vn/index.php/vjmech/article/view/10060. Acesso em: 20 apr. 2024.