ANH, N. N.; HIEN, H. N.; TRUNG, M. D. Numerical solution for the problem on spread of pollution in underground water in Hanoi. Vietnam Journal of Mechanics, Hanoi, Vietnam, v. 17, n. 4, p. 1–5, 1995. DOI: 10.15625/0866-7136/10139. Disponível em: https://vjs.ac.vn/index.php/vjmech/article/view/10139. Acesso em: 23 jan. 2022.