KHANG, N. V. On the vibration of the block base under many parallel plane mechanisms. Vietnam Journal of Mechanics, Hanoi, Vietnam, v. 14, n. 3, p. 6–12, 1992. DOI: 10.15625/0866-7136/10234. Disponível em: https://vjs.ac.vn/index.php/vjmech/article/view/10234. Acesso em: 25 may. 2022.