%0 Journal Article %A I. E. Makeeva %T The convergence property of certain third order nonlinear differential equations %J Differencialʹnye uravneniâ %D 1971 %P 1327-1329 %V 7 %N 7 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1971_7_7_a17/ %G ru %F DE_1971_7_7_a17