%0 Journal Article %A A. I. Kamzolov %T Approximation of the functional classes $\widetilde W_p^\alpha(L)$ in the spaces $\mathscr L_s[-\pi,\pi]$ by the Fej\'er method %J Matematičeskie zametki %D 1978 %P 343-349 %V 23 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/MZM_1978_23_3_a1/ %G ru %F MZM_1978_23_3_a1