LICH, T. G. One method to determine the solution values at the boundary for the vertical two-dimensional equation system. Vietnam Journal of Mechanics, Hanoi, Vietnam, v. 20, n. 3, p. 24–36, 1998. DOI: 10.15625/0866-7136/10025. Disponível em: https://vjs.ac.vn/index.php/vjmech/article/view/10025. Acesso em: 2 may. 2024.