%0 Journal Article %A Yu. V. Kuznetsov %T On the analytic theory of infinite systems of linear differential equations %J Differencialʹnye uravneniâ %D 1969 %P 1018-1028 %V 5 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1969_5_6_a4/ %G ru %F DE_1969_5_6_a4