Petrova, T. O., and I. P. Chulakov. 2020. “Some Negative Results for the Interpolation Monotone Approximation of Functions Having a Fractional Derivative”. Bulletin of Taras Shevchenko National University of Kyiv. Physics and Mathematics, no. 3 (November): 122-27. https://doi.org/10.17721/1812-5409.2020/3.14.