A Free Boundary Problem Governed by Nonlinear Degenerate Equations of Parabolic Type. Journal of Partial Differential Equations, [S. l.], v. 5, n. 2, p. 37–52, 1992. Disponível em: https://global-sci.com/index.php/jpde/article/view/3710. Acesso em: 5 dec. 2025.