JIANG, Yongsheng, WANG, Zhengping and ZHOU, Huan-Song. Positive solutions for Schrödinger-Poisson-Slater system with coercive potential. Topological Methods in Nonlinear Analysis. Online. 20 February 2021. Vol. 57, no. 2, pp. 427 - 439. [Accessed 27 April 2024].