%0 Journal Article %A Šoltés, Pavol %T Boundedness of Solutions of Non-Linear Differential Equation Systems %J Mathematica slovaca %D 1971 %P 91-105 %V 21 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/MASLO_1971__21_2_a2/ %G en %F MASLO_1971__21_2_a2