MARTÍNEZ ORTIZ, J.; RAMÍREZ HERNÁNDEZ, L. The theorem existence and uniqueness of the solution of a fractional differential equation. Acta Universitaria, [S. l.], v. 23, p. 16–18, 2013. DOI: 10.15174/au.2013.593. Disponível em: https://www.actauniversitaria.ugto.mx/index.php/acta/article/view/593. Acesso em: 30 abr. 2025.