EL-SAYED, A. M. A.; GAMA, R.; EBEAD, H. R. Solvability of nonlinear functional differential equations with state-dependent derivatives. Methods of Functional Analysis and Topology, [S. l.], v. 29, n. 1-2, p. 30–38, 2023. DOI: https://doi.org/10.31392/MFAT-npu26_1–2.2023.03. Disponível em: https://zen.imath.kiev.ua/index.php/mfat/article/view/845. Acesso em: 16 dec. 2025.