MotornyiV. P. (1999) “Approximation of fractional-order integrals by algebraic polynomials. I”, Ukrains’kyi Matematychnyi Zhurnal, 51(5), pp. 603–613. Available at: https://umj.imath.kiev.ua/index.php/umj/article/view/4648 (Accessed: 24November2024).