%0 Journal Article %A Šoltés, Pavel %T On certain properties of the solutions of a nonlinear differential equation of the second order %J Archivum mathematicum %D 1971 %P 47-63 %V 7 %N 2 %U http://geodesic.mathdoc.fr/item/ARM_1971_7_2_a0/ %G en %F ARM_1971_7_2_a0