Dhage, Bapurao C., John R. Graef, and Shyam B. Dhage. “Existence, Stability and Global Attractivity Results for Nonlinear Riemann-Liouville Fractional Differential Equations”. CUBO, A Mathematical Journal (April 24, 2023): 23–36. Accessed May 2, 2024. https://www.perspectivasdelacomunicacion.cl/ojs/index.php/cubo/article/view/3324.