%0 Journal Article %A V. E. Volkov %T Sufficient conditions for the property of being a basis in $L_p$ and for equiconvergence with a trigonometric series of spectral expansions %J Differencialʹnye uravneniâ %D 1987 %P 952-960 %V 23 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1987_23_6_a3/ %G ru %F DE_1987_23_6_a3