%0 Journal Article %A T. K. Nurekenov %T Solutions of countable systems of differential equations %J Differencialʹnye uravneniâ %D 1984 %P 1640-1642 %V 20 %N 9 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1984_20_9_a27/ %G ru %F DE_1984_20_9_a27