MUKHIGULASHVILI, S.; NOVOTNÁ, V. Some two-point problems for second order integro-differential equations with argument deviations. Topological Methods in Nonlinear Analysis, [S. l.], v. 54, n. 2, p. 459–476, 2019. Disponível em: https://apcz.umk.pl/TMNA/article/view/TMNA.2019.045. Acesso em: 24 jan. 2022.