%0 Journal Article %A RAÚL NAULIN %T A remark on exponential dichotomies %J Revista colombiana de matematicas %D 1999 %P 9-13 %V 33 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/RCM_1999_33_1_a4/ %F RCM_1999_33_1_a4