TY - JOUR AU - H. G. Ghazaryan AU - V. N. Margaryan TI - On infinite differentiability of solutions of nonhomogeneous almost hypoelliptic equations JO - Eurasian mathematical journal PY - 2010 SP - 54 EP - 72 VL - 1 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/EMJ_2010_1_1_a6/ LA - en ID - EMJ_2010_1_1_a6 ER -