Passaseo, D. (1996) “Multiplicity of nodal solutions for elliptic equations with supercritical exponent in contractible domains”, Topological Methods in Nonlinear Analysis, 8(2), pp. 245–262. Available at: https://apcz.umk.pl/TMNA/article/view/TMNA.1996.031 (Accessed: 18 April 2024).