%0 Journal Article %A Daniel Gourdin %A Todor Gramchev %T Global Cauchy problems for hyperbolic systems with characteristics admitting superlinear growth for $ |x|\to \infty $ %J Comptes Rendus. Mathématique %D 2009 %P 49-54 %V 347 %N 1-2 %I Elsevier %R 10.1016/j.crma.2008.11.009 %G en %F CRMATH_2009__347_1-2_49_0