Tshering, Ugyen, Ekkarath Thailert, Sotiris Ntouyas, and Piyanuch Siriwat. “Sequential Hilfer-Hadamard Fractional Three-Point Boundary Value Problems”. Thai Journal of Mathematics 21, no. 3 (September 30, 2023): 609–624. Accessed November 23, 2024. https://thaijmath2.in.cmu.ac.th/index.php/thaijmath/article/view/1530.