MUNG XUAN NGUYEN; LE THANH, Lanh; NGUYEN, The Mich. Fast finite-time backstepping controller for a quadrotor UAV under state constraints. <b>Vietnam Journal of Science and Technology</b>, Hanoi, VN, v. 62, n. 2, p. 387–401, 2023. DOI: 10.15625/2525-2518/18131. Disponível em: https://vjs.ac.vn/jst/article/view/18131. Acesso em: 10 jan. 2026.