SMIRNOV, A.; OLIVEIRA, R. M. M. Equilirium Spheres and Some Estimates of Processes of Gravitational Contraction. Scientia Plena, [S. l.], v. 11, n. 3, 2015. Disponível em: https://www.scientiaplena.org.br/sp/article/view/1683. Acesso em: 19 may. 2024.