%0 Journal Article %A U. Raitums %T Closure in $L_2$ of the set of solutions of a family of nonlinear elliptic equations %J Differencialʹnye uravneniâ %D 1980 %P 501-506 %V 16 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1980_16_3_a13/ %G ru %F DE_1980_16_3_a13