TAWAKLEY, V. B. Application of Variational Technique to the Optimization Problems of Multiple Stage Rockets. Defence Science Journal, [S. l.], v. 18, n. 1, p. 13–20, 2014. DOI: 10.14429/dsj.18.7423. Disponível em: https://publications.drdo.gov.in/ojs/index.php/dsj/article/view/7423. Acesso em: 16 jun. 2025.