DANCER, E. Norman. Connectedness of the branch of positive solutions of some weakly nonlinear elliptic equations. Topological Methods in Nonlinear Analysis, [S. l.], v. 2, n. 1, p. 91–104, 1993. Disponível em: https://apcz.umk.pl/TMNA/article/view/TMNA.1993.032. Acesso em: 8 jul. 2025.