KIM, I.-S.; VÄTH, M. A degree theory for variational inequalities with sums of maximal monotone and (S$_+$) operators. Topological Methods in Nonlinear Analysis, [S. l.], v. 47, n. 2, p. 405–422, 2016. DOI: 10.12775/TMNA.2016.022. Disponível em: https://apcz.umk.pl/TMNA/article/view/TMNA.2016.022. Acesso em: 25 apr. 2024.