%0 Journal Article %A Kusahara, Toshiaki %A Usami, Hiroyuki %T A barrier method for quasilinear ordinary differential equations of the curvature type %J Czechoslovak Mathematical Journal %D 2000 %P 185-196 %V 50 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/CMJ_2000__50_1_a19/ %G en %F CMJ_2000__50_1_a19