SAMIA CHALLAL. Regularity of the Free Boundary in $div(a(x) \nabla u(x,y) )= -(h(x)\gamma(u))_x$ with $h^\prime (x)<0$. International Journal of Mathematics And its Applications, [S. l.], v. 9, n. 4, p. 1–11, 2021. Disponível em: http://ijmaa.in/index.php/ijmaa/article/view/23. Acesso em: 26 apr. 2024.