%0 Journal Article %A P. G. Potseiko %A Y. A. Rovba %T On rational Abel – Poisson means on a segment and approximations of Markov functions %J Journal of the Belarusian State University. Mathematics and Informatics %D 2021 %P 6-24 %V 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/BGUMI_2021_3_a0/ %G ru %F BGUMI_2021_3_a0