DE ARAUJO, Anderson L. A., FARIA, Luiz F.O., ALARCÓN, Salomón and ITURRIAGA, Leonelo. On radial solutions for some elliptic equations involving operators with unbounded coefficients in exterior domains. Topological Methods in Nonlinear Analysis. Online. 11 December 2022. Vol. 60, no. 2, pp. 699 - 723. [Accessed 13 December 2025]. DOI 10.12775/TMNA.2022.026.