Three Points Frictionless Simultaneous Collision of Rigid Solid. Romanian Journal of Acoustics and Vibration, [S. l.], v. 20, n. 2, p. 162–166, 2023. Disponível em: https://rjav.sra.ro/index.php/rjav/article/view/418.. Acesso em: 19 apr. 2025.