APPELL, J.; DE PASCALE, E.; NGUYÊÑ, H. T.; ZABREĬKO, P. P. Nonlinear integral inclusions of Hammerstein type. Topological Methods in Nonlinear Analysis, [S. l.], v. 5, n. 1, p. 111–124, 1995. Disponível em: https://apcz.umk.pl/TMNA/article/view/TMNA.1995.007. Acesso em: 3 jul. 2024.