SANH, D. Canonical equations for a constrained mechanical system. Vietnam Journal of Mechanics, Hanoi, Vietnam, v. 16, n. 1, p. 43–48, 1994. DOI: 10.15625/0866-7136/10156. Disponível em: https://vjs.ac.vn/index.php/vjmech/article/view/10156. Acesso em: 6 may. 2024.