%0 Journal Article %A V. N. Shchennikov %T Investigation of an almost periodic state of a nonlinear controllable system %J Differencialʹnye uravneniâ %D 1986 %P 2182-2183 %V 22 %N 12 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1986_22_12_a22/ %G ru %F DE_1986_22_12_a22