%0 Journal Article %A N. K. Makina %A É. A. Nazirova %A Ya. T. Sultanaev %T On the Methods of Study of the Asymptotic Behavior of Solutions of Singular Differential Equations %J Matematičeskie zametki %D 2014 %P 627-632 %V 96 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/MZM_2014_96_4_a13/ %G ru %F MZM_2014_96_4_a13