%0 Journal Article %A Hakobyan, G.H. %T Estimates of the higher order derivatives of the solutions of hypoelliptic equations. %J Rendiconti del seminario matematico %D 2003 %P 443-459 %V 61 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/RSM_2003__61_4_129380/ %G en %F RSM_2003__61_4_129380