HWANG, Y.-H.; CHIANG, C.-H. Tracking Methods to Study the Surface Regression of the Solid-Propellant Grain. International Journal of Engineering and Technology Innovation, [S. l.], v. 4, n. 4, p. 213–222, 2014. Disponível em: https://ojs.imeti.org/index.php/IJETI/article/view/144. Acesso em: 9 jun. 2023.