%0 Journal Article %A B. G. Razumeiko %T The fundamental system of solutions of an ordinary linear differential equation with a small parameter %J Differencialʹnye uravneniâ %D 1970 %P 1366-1377 %V 6 %N 8 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1970_6_8_a3/ %G ru %F DE_1970_6_8_a3