%0 Journal Article %A Sh. T. Dzhabbarov %T A generalized contraction mapping principle, and infinite systems of differential equations %J Differencialʹnye uravneniâ %D 1990 %P 1299-1309 %V 26 %N 8 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1990_26_8_a1/ %G ru %F DE_1990_26_8_a1