%0 Journal Article %A V. D. Budaev %T On the convergence of spectral expansions at the point of %J Doklady Akademii Nauk %D 1987 %P 270-274 %V 293 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1987_293_2_a1/ %G ru %F DAN_1987_293_2_a1