On the Dynamics with s Collisions of a Spatial Physical Pendulum. Romanian Journal of Acoustics and Vibration, [S. l.], v. 16, n. 2, p. 158–165, 2020. Disponível em: https://rjav.sra.ro/index.php/rjav/article/view/148.. Acesso em: 29 apr. 2026.