%0 Journal Article %A G. N. Yakovlev %T Solution of second order elliptic equations in weight spaces %J Differencialʹnye uravneniâ %D 1972 %P 928-930 %V 8 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1972_8_5_a25/ %G ru %F DE_1972_8_5_a25