DING, Z.; KARTSATOS, A. G. $p$-regular mappings and alternative results for perturbations of $m$-accretive operators in Banach spaces. Topological Methods in Nonlinear Analysis, [S. l.], v. 5, n. 2, p. 291–304, 1995. Disponível em: https://apcz.umk.pl/TMNA/article/view/TMNA.1995.020. Acesso em: 22 jul. 2024.