Positive Solutions for Hilfer Fractional Differential Equation Boundary Value Problems at Resonance. Journal of Nonlinear Modeling and Analysis, [S. l.], v. 5, n. 4, p. 695–707, 2024. DOI: 10.12150/jnma.2023.695. Disponível em: https://global-sci.com/index.php/jnma/article/view/13710. Acesso em: 5 dec. 2025.