Gavrilyuk , I. P., and V. L. Makarov. 2022. “Approximations of the Mittag-Leffler Operator Function With Exponential Accuracy and Their Application to Solving of Evolution Equations With Fractional Derivative in Time”. Ukrains’kyi Matematychnyi Zhurnal 74 (5), 620 -34. https://doi.org/10.37863/umzh.v74i5.7097.