%0 Journal Article %A S. G. Kondratenya %A I. N. Mel'nikova %T Classes of systems of three differential equations that do not have solutions with indeterminate components %J Differencialʹnye uravneniâ %D 1993 %P 1069-1070 %V 29 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1993_29_6_a20/ %G ru %F DE_1993_29_6_a20