NAIDU, V.; G., G.; RAOL, J. Estimation of Launch and Impact Points of a Flight Trajectory using U-D Kalman Filter/Smoother. Defence Science Journal, [S. l.], v. 56, n. 4, p. 451–463, 2006. DOI: 10.14429/dsj.56.1911. Disponível em: https://publications.drdo.gov.in/ojs/index.php/dsj/article/view/1911. Acesso em: 15 jun. 2025.