AIRES, Jose and SOUTO, Marco A. S. Equation with positive coefficient in the quasilinear term and vanishing potential. Topological Methods in Nonlinear Analysis. Online. 1 December 2015. Vol. 46, no. 2, pp. 813 - 834. [Accessed 3 July 2024]. DOI 10.12775/TMNA.2015.069.