HAITAO GAO. The Study of the Density of Physical Space and the Hubble Constant. Global Journal of Science Frontier Research, [S. l.], v. 20, n. A11, p. 19–24, 2020. Disponível em: https://journalofscience.org/index.php/GJSFR/article/view/2811. Acesso em: 3 may. 2024.