CHENG, B.; CHEN, J.; TANG, X. Existence and concentration of ground state sign-changing solutions for Kirchhoff type equations with steep potential well and nonlinearity. Topological Methods in Nonlinear Analysis, [S. l.], v. 51, n. 1, p. 111–133, 2018. Disponível em: https://apcz.umk.pl/TMNA/article/view/TMNA.2017.062. Acesso em: 22 jul. 2024.