SIRPAL, J. P. Optimum design of control system in recoil mechanisms. Defence Science Journal, [S. l.], v. 9, n. 3, p. 206–211, 2014. DOI: 10.14429/dsj.9.7627. Disponível em: https://publications.drdo.gov.in/ojs/index.php/dsj/article/view/7627. Acesso em: 20 aug. 2025.