%0 Journal Article %A V. N. Rusak %T Exact orders of best rational approximations of a convolution of the Weyl kernel, and functions from $L_p$ %J Doklady Akademii Nauk %D 1990 %P 313-316 %V 315 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1990_315_2_a13/ %G ru %F DAN_1990_315_2_a13