%0 Journal Article %A Xiao-Min Li %A Cun-Chen Gao %T On a $k$th-order differential equation %J Annales Polonici Mathematici %D 2006 %P 53-63 %V 89 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/ap89-1-4/ %R 10.4064/ap89-1-4 %G en %F 10_4064_ap89_1_4