OTANI, M.; STAICU, V. On time-periodic solutions of some nonlinear parabolic equations with nonmonotone multivalued terms. Topological Methods in Nonlinear Analysis, [S. l.], v. 54, n. 2B, p. 1075–1092, 2019. Disponível em: https://apcz.umk.pl/TMNA/article/view/TMNA.2019.092. Acesso em: 22 lip. 2024.