LICH, Tran Gia. 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://vjmech.vast.vn/vjmech/article/view/10025. Acesso em: 8 nov. 2025.