SÁNCHEZ VILLANUEVA, J. Some Solutions for Field equations of the Standard Cosmology. Revista de la Escuela de Física, [S. l.], v. 1, n. 1, p. 10–17, 2013. DOI: 10.5377/ref.v1i1.7155. Disponível em: https://camjol.info/index.php/fisica/article/view/7155. Acesso em: 17 jul. 2024.