Mathematical Model of a Gas-Operated Machine Gun. Advances in Military Technology, [S. l.], v. 17, n. 1, p. 63–77, 2022. DOI: 10.3849/aimt.01449. Disponível em: https://www.aimt.cz/index.php/aimt/article/view/1449.. Acesso em: 5 may. 2024.