“The Uniqueness of Positive Solution for Higher-Order Nonlinear Fractional Differential Equation With Fractional Multi-Point Boundary Conditions”. Advances in the Theory of Nonlinear Analysis and its Application 2, no. 2 (December 31, 2018): 74–84. Accessed June 13, 2026. https://mail.atnaea.org/index.php/journal/article/view/27.