%0 Journal Article %A B. V. Loginov %A D. G. Rakhimov %T On the connection between the method of false perturbations, analytical perturbations, and differential equations with degeneration %J Differencialʹnye uravneniâ %D 1981 %P 2090-2093 %V 17 %N 11 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1981_17_11_a17/ %G ru %F DE_1981_17_11_a17