DR. PERMESHWAR LAL. The Influence of Gravity on Time Dilation and Relativistic Effects in Strong Gravitational Fields. International Journal of Research & Technology, [S. l.], v. 5, n. 4, p. 19–33, 2017. Disponível em: https://ijrt.org/j/article/view/503. Acesso em: 31 mar. 2026.