%0 Journal Article %A Andres, Ján %T Dynamical systems modelled by third order differential equations with special respect to the influence of the restoring term on the properties of solutions %J Acta Universitatis Palackianae Olomucensis. Facultas Rerum Naturalium. Mathematica %D 1987 %P 139-147 %V 26 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/AUPO_1987__26_1_a8/ %G en %F AUPO_1987__26_1_a8