AMANOV, R. A.; MAMEDOV, F. I. On some properties of solutions of quasilinear degenerate equations. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 60, n. 7, p. 918–936, 2008. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/3209. Acesso em: 5 dec. 2025.