GUPTA, S. K.; MEHTA, A. K. A note on efficiency of rockets. Defence Science Journal, [S. l.], v. 4, n. 3, p. 122–124, 2013. DOI: 10.14429/dsj.4.3710. Disponível em: https://publications.drdo.gov.in/ojs/index.php/dsj/article/view/3710. Acesso em: 16 jun. 2025.