MOTONAKA, Kimiko. Obstacle Avoidance for Autonomous Locomotion of a Quadrotor Using an HPF. International Journal on Smart Material and Mechatronics, [S. l.], v. 2, n. 2, p. 110–115, 2016. Disponível em: https://ijsmm.id/index.php/ijsmm/article/view/67. Acesso em: 27 aug. 2025.