NGUYEN MINH NHUT; PHUNG TRI CONG. An improved counterbalance mechanism for A 3-DOF manipulator. Journal of Technical Education Science, [S. l.], v. 14, n. 2, p. 56–63, 2019. Disponível em: https://www.jte.edu.vn/index.php/jte/article/view/229. Acesso em: 8 apr. 2026.