%0 Journal Article %A I. I. Sharapudinov %T Approximating smooth functions using algebraic-trigonometric polynomials %J Sbornik. Mathematics %D 2010 %P 1689-1713 %V 201 %N 11 %I mathdoc %U http://geodesic.mathdoc.fr/item/SM_2010_201_11_a5/ %G en %F SM_2010_201_11_a5