The Expansion of the Universe. International Journal of Scientific Research and Management (IJSRM), [S. l.], v. 8, n. 07, p. 25–31, 2020. DOI: 10.18535/ijsrm/v8i07.aa01. Disponível em: https://ijsrm.net/index.php/ijsrm/article/view/2823.. Acesso em: 20 may. 2024.