ON A PROBLEM FOR A QUASI-LINEAR ELLIPTIC EQUATION WITH TWO PERPENDICULAR LINES OF DEGENERACY. Proceedings of International Educators Conference, [S. l.], v. 1, n. 3, p. 352–354, 2022. Disponível em: https://econferenceseries.com/index.php/iec/article/view/741. Acesso em: 27 oct. 2025.