%0 Journal Article %A V. I. Matatov %T Systems of differential equations without movable critical singular points %J Differencialʹnye uravneniâ %D 1973 %P 2267-2269 %V 9 %N 12 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1973_9_12_a24/ %G ru %F DE_1973_9_12_a24