%0 Journal Article %A V. A. Kondratiev %T Solutions of weakly nonlinear elliptic equations in a neighborhood of a conic point of the boundary %J Differencialʹnye uravneniâ %D 1993 %P 298-305 %V 29 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1993_29_2_a12/ %G ru %F DE_1993_29_2_a12