%0 Journal Article %A V. E. Slyusarchuk %T On the instability of difference equations with respect to the first approximation %J Differencialʹnye uravneniâ %D 1986 %P 722-723 %V 22 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1986_22_4_a26/ %G ru %F DE_1986_22_4_a26