Existence and Nonuniqueness of Weak Solutions for a Degenerate Diffusion Equation. Journal of Partial Differential Equations, [S. l.], v. 18, n. 3, p. 267–286, 2005. Disponível em: https://gsp.tricubic.dev/jpde/article/view/4051. Acesso em: 15 mar. 2026.