ALMALAHI , Mohammed A., Satish K. PANCHAL, and Mohammed S. ABDO. 2021. “Positive Solution of Hilfer Fractional Differential Equations With Integral Boundary Conditions”. Studia Universitatis Babeș-Bolyai Mathematica 66 (4):709–722. https://doi.org/10.24193/subbmath.2021.4.09.