%0 Journal Article %A Yu. Yu. Bagderina %A R. K. Gazizov %T Approximately Invariant Solutions of Differential Equations with a Small Parameter %J Differencialʹnye uravneniâ %D 2005 %P 347-355 %V 41 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_2005_41_3_a6/ %G ru %F DE_2005_41_3_a6