%0 Journal Article %A A. A. Nurmagomedov %T Approximation properties of discrete Fourier sums in polynomials orthogonal on non-uniform grids %J Vladikavkazskij matematičeskij žurnal %D 2020 %P 34-47 %V 22 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/VMJ_2020_22_2_a3/ %G ru %F VMJ_2020_22_2_a3