Clément, P., D. G. de Figueiredo, and E. Mitidieri. “Quasilinear Elliptic Equations With Critical Exponents”. Topological Methods in Nonlinear Analysis, vol. 7, no. 1, Mar. 1996, pp. 133-70, https://apcz.umk.pl/TMNA/article/view/TMNA.1996.006.