%0 Journal Article %A H. G. Ghazaryan %A V. N. Margaryan %T On infinite differentiability of solutions of nonhomogeneous almost hypoelliptic equations %J Eurasian mathematical journal %D 2010 %P 54-72 %V 1 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/EMJ_2010_1_1_a6/ %G en %F EMJ_2010_1_1_a6