NARLIKAR, J. V. How Universal is Hubble’s Law?. The Journal of the Indian Mathematical Society, [S. l.], v. 61, n. 1-2, p. 13–36, 1995. Disponível em: https://informaticsjournals.com/index.php/jims/article/view/21861. Acesso em: 5 may. 2024.