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 28 June 2025]. DOI 10.12775/TMNA.2022.026.