%0 Journal Article %A Kawagishi, Masaki %T A Holmgren type theorem for partial differential equations whose coefficients are Gevrey functions %J Electronic Journal of Differential Equations %D 2010 %V 2010 %I mathdoc %U http://geodesic.mathdoc.fr/item/EJDE_2010__2010__a152/ %G en %F EJDE_2010__2010__a152