%0 Journal Article %A Vlček, Vladimír %T Conjugate points of solutions of an iterated differential equation of the $n$-th order %J Acta Universitatis Palackianae Olomucensis. Facultas Rerum Naturalium. Mathematica %D 1983 %P 115-130 %V 22 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/AUPO_1983__22_1_a11/ %G en %F AUPO_1983__22_1_a11