Mao, Anmin, and Hejie Chang. 2017. “Schrödinger-Poisson Systems With Radial Potentials and Discontinuous Quasilinear Nonlinearity”. Topological Methods in Nonlinear Analysis 51 (1):79-89. https://apcz.umk.pl/TMNA/article/view/TMNA.2017.040.