DEEPAK KUMAR. A Study On Standard Approach Applied to the Motion of a Celestial Body in Our Universe. International Journal of Mathematics And its Applications, [S. l.], v. 5, n. 4 - D, p. 565–566, 2017. Disponível em: http://ijmaa.in/index.php/ijmaa/article/view/1308. Acesso em: 17 dec. 2025.