THAI, Thai Son; VU, Dinh Quy. Effect of Ring Surface Design on the Thrust of a Rotor using in Multirotor UAV. Old Journal, [S. l.], n. 130B, p. 55–59, 2018. Disponível em: https://jst.vn/index.php/old/article/view/748. Acesso em: 2 aug. 2025.