de Paiva, Francisco Odair, João Marcos do Ó, and Everaldo Souto de Medeiros. “Multiplicity Results for Some Quasilinear Elliptic Problems”. Topological Methods in Nonlinear Analysis 36, no. 1 (September 1, 2009): 77–89. Accessed April 25, 2024. https://apcz.umk.pl/TMNA/article/view/TMNA.2009.030.