%0 Journal Article %A Bernardi, Enrico %A Bove, Antonio %T On an ODE Relevant for the General Theory of the Hyperbolic Cauchy Problem %J Serdica Mathematical Journal %D 2008 %P 311-328 %V 34 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/SMJ2_2008_34_1_a11/ %G en %F SMJ2_2008_34_1_a11