OUCHI, Yusuke. Position Control of an X4-Flyer Using a Tether . International Journal on Smart Material and Mechatronics, [S. l.], v. 1, n. 1, p. 20–23, 2014. Disponível em: https://ijsmm.id/index.php/ijsmm/article/view/4. Acesso em: 26 aug. 2025.