%0 Journal Article %A N. K. Karapetyants %A V. L. Ochirova %T On a necessary condition for the convergence of averages at Lebesgue $p$-points of functions from $L_p$ %J Izvestiâ vysših učebnyh zavedenij. Matematika %D 1996 %P 27-33 %N 9 %I mathdoc %U http://geodesic.mathdoc.fr/item/IVM_1996_9_a4/ %G ru %F IVM_1996_9_a4