Aires, Jose, and Marco A. S. Souto. “Equation With Positive Coefficient in the Quasilinear Term and Vanishing Potential”. Topological Methods in Nonlinear Analysis 46, no. 2 (December 1, 2015): 813–834. Accessed January 8, 2026. https://apcz.umk.pl/TMNA/article/view/TMNA.2015.069.