Karande, B.D., and Pravin M. More. “Existence and Extremal Solution of Boundary Value Problem for Nonlinear Hybrid Fractional Differential Equation in Banach Algebras”. Nepal Journal of Mathematical Sciences 1 (October 31, 2020): 23–32. Accessed July 17, 2024. https://nepjol.info/index.php/njmathsci/article/view/34156.