Bendahmane, Mostafa, and Said El Manouni. 2010. “Anisotropic Elliptic Equations in $\mathbb R^{N}$: Existence and Regularity Results”. Topological Methods in Nonlinear Analysis 36 (1):129-51. https://apcz.umk.pl/TMNA/article/view/TMNA.2010.032.