%0 Journal Article %A G. V. Nesterenko %T The use of pseudosymmetries for constructing exact solutions of differential equations %J Differencialʹnye uravneniâ %D 1990 %P 1173-1178 %V 26 %N 7 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1990_26_7_a8/ %G ru %F DE_1990_26_7_a8