Ali El Mfadel, Said Melliani and M’hamed Elomari (2022) “New existence results for nonlinear functional hybrid differential equations involving the ψ−Caputo fractional derivative”, Results in Nonlinear Analysis, 5(1), pp. 78–86. Available at: https://nonlinear-analysis.com/index.php/pub/article/view/87 (Accessed: 24 November 2024).