TORNÉ, O. A one dimensional problem related to the symmetry of minimisers for the Sobolev trace constant in a ball. Topological Methods in Nonlinear Analysis, [S. l.], v. 38, n. 2, p. 363–372, 2011. Disponível em: https://apcz.umk.pl/TMNA/article/view/TMNA.2011.037. Acesso em: 29 mar. 2024.