HwangS.-R., YehS.-Y., and TsengK.-L. “On Some Hermite–Hadamard Inequalities for Fractional Integrals and Their Applications”. Ukrains’kyi Matematychnyi Zhurnal, Vol. 72, no. 3, Mar. 2020, pp. 407-24, doi:10.37863/umzh.v72i3.6043.