Marano, Salvatore A., Dumitru Motreanu, and Daniele Puglisi. “Multiple Solutions to a Dirichlet Eigenvalue Problem With $p$-Laplacian”. Topological Methods in Nonlinear Analysis 42, no. 2 (April 22, 2013): 277–291. Accessed April 25, 2024. https://apcz.umk.pl/TMNA/article/view/TMNA.2013.037.