%0 Journal Article %A A. D. Lyashko %A M. F. Pavlova %T Difference approximation of a nonlinear nonstationary variational inequality %J Differencialʹnye uravneniâ %D 1984 %P 1237-1247 %V 20 %N 7 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1984_20_7_a15/ %G ru %F DE_1984_20_7_a15