Lich, Tran Gia, Nguyen Minh Son, and Le Viet Cuong. “Calculation of the Horizontal Two-Dimensional Unsteady Flows by the Method of Characteristics”. <i>Vietnam Journal of Mechanics</i> 25, no. 1 (March 31, 2003): 49–64. Accessed November 8, 2025. https://vjmech.vast.vn/vjmech/article/view/6578.