%0 Journal Article %A Bolley, Pierre %A Camus, Jacques %T Powers and Gevrey's regularity for a system of differential operators %J Czechoslovak Mathematical Journal %D 1979 %P 649-661 %V 29 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1979.101644/ %R 10.21136/CMJ.1979.101644 %G en %F 10_21136_CMJ_1979_101644