%0 Journal Article %A Ren, Zhihua %A Yang, Jiazhong %T On the C1 normal forms for hyperbolic vector fields %J Comptes Rendus. Mathématique %D 2003 %P 709-712 %V 336 %N 9 %I Elsevier %U http://www.numdam.org/articles/10.1016/S1631-073X(03)00173-0/ %R 10.1016/S1631-073X(03)00173-0 %G en %F CRMATH_2003__336_9_709_0