Santos, C. A., J. V. Gonçalves, and M. L. Carvalho. “About Positive $W_{loc}^{1,\Phi}(\Omega)$-Solutions to Quasilinear Elliptic Problems With Singular Semilinear Term”. Topological Methods in Nonlinear Analysis, vol. 53, no. 2, Mar. 2019, pp. 491-17, https://apcz.umk.pl/TMNA/article/view/TMNA.2019.009.