The porous medium equation as a finite-speed approximation to a Hamilton-Jacobi equation D. G. Aronson; J. L. Vazquez — 1987 Annales de l'I.H.P. Analyse non linéaire
Asymptotic behaviour of the solutions of a strongly nonlinear parabolic problem M. A. Herrero; J. L. Vazquez — 1981 Annales de la Faculté des sciences de Toulouse : Mathématiques