Cavalheiro, Albo Carlos. “On the Dirichlet Problem for a Class of Nonlinear Degenerate Elliptic Equations in Weighted Sobolev Spaces”. Annales Mathematicae Silesianae, vol. 39, no. 2, Nov. 2024, pp. 223-47, https://journals.us.edu.pl/index.php/AMSIL/article/view/18120.