%0 Journal Article %A S. P. Baiborodov %T Lebesgue constants and approximation of functions by Fourier and Fej\'er sums %J Doklady Akademii Nauk %D 1984 %P 1033-1035 %V 277 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1984_277_5_a0/ %G ru %F DAN_1984_277_5_a0