%0 Journal Article %A V. I. Lyalikova %T A special third-order differential equation with fixed critical points %J Differencialʹnye uravneniâ %D 1984 %P 1090-1092 %V 20 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1984_20_6_a22/ %G ru %F DE_1984_20_6_a22