Narvilkar DK. Solution of Equations of Internal Ballistics for the Composite Charge Using Lagrange Density Approximation. Def. Sc. J. [Internet]. 2014 Feb. 24 [cited 2025 Jun. 16];29(3):123-30. Available from: https://publications.drdo.gov.in/ojs/index.php/dsj/article/view/6495