GUPTA, M. C. Internal ballistics of recoilless high-low pressure guns using hepta-tubular powders. Defence Science Journal, [S. l.], v. 10, n. 2, p. 59–83, 2014. DOI: 10.14429/dsj.10.7652. Disponível em: https://publications.drdo.gov.in/ojs/index.php/dsj/article/view/7652. Acesso em: 7 jul. 2025.