Choukri Derbazi, and Zidane Baitiche. “Coupled System of ψCaputo Fractional Differential Equations Without and With Delay in Generalized Banach Spaces”. Results in Nonlinear Analysis 5, no. 1 (November 7, 2022): 42–61. Accessed September 16, 2024. https://nonlinear-analysis.com/index.php/pub/article/view/85.