%0 Journal Article %A G. G. Kazaryan %T On estimates of monomials in terms of a given polynomial, and a characterization of hypoellipticity %J Doklady Akademii Nauk %D 1975 %P 530-533 %V 222 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1975_222_3_a3/ %G ru %F DAN_1975_222_3_a3