%0 Journal Article %A BartuĊĦek, Miroslav %T On structure of solutions of a system of four differential inequalities. %J Georgian Mathematical Journal %D 1995 %P 225-236 %V 2 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/GMJ_1995__2_3_47272/ %G en %F GMJ_1995__2_3_47272