Existence and Uniqueness of Solutions for Fractional Neutral Volterra-Fredholm Integro Differential Equations. Advances in the Theory of Nonlinear Analysis and its Application, [S. l.], v. 4, n. 4, p. 321–331, 2023. Disponível em: https://atnaea.org/index.php/journal/article/view/140.. Acesso em: 26 may. 2026.