ALVES, C. O. Multiplicity of multi-bump type nodal solutions for a class of elliptic problems in ${\Bbb R}^N$. Topological Methods in Nonlinear Analysis, [S. l.], v. 34, n. 2, p. 231–250, 2009. Disponível em: https://apcz.umk.pl/TMNA/article/view/TMNA.2009.040. Acesso em: 26 apr. 2024.