%0 Journal Article %A A. S. Fokht %T Estimation in the $L_2$ metric of the derivatives of the solutions of linear nonhomogeneous equations of elliptic type and arbitrary order near the boundary of the domain %J Differencialʹnye uravneniâ %D 1972 %P 1242-1255 %V 8 %N 7 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1972_8_7_a10/ %G ru %F DE_1972_8_7_a10