Santos, Andrelino V., João R. Santos Júnior, and Antonio Suárez. “Study of a Class of Generalized Schrödinger Equations”. Topological Methods in Nonlinear Analysis 56, no. 1 (September 5, 2020): 173–195. Accessed May 4, 2024. https://apcz.umk.pl/TMNA/article/view/TMNA.2020.008.