%0 Journal Article %A Hakobyan, G. O. %A Margaryan, V. N. %T Gevrey hypoellipticity for a class of degenerated quasi-elliptic operators %J Commentationes Mathematicae Universitatis Carolinae %D 2003 %P 637-644 %V 44 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/CMUC_2003__44_4_a7/ %G en %F CMUC_2003__44_4_a7