QUANG, Le Dinh. Method of calculating the vertical velocity forced by the friction. <b>Vietnam Journal of Mechanics</b>, Hanoi, Vietnam, v. 3, n. 1, p. 28–31, 1981. DOI: 10.15625/0866-7136/10476. Disponível em: https://vjmech.vast.vn/vjmech/article/view/10476. Acesso em: 8 nov. 2025.