%0 Journal Article %A P. P. Mosolov %T A boundary-value problem for hypoelliptic operators %J Trudy Matematicheskogo Instituta imeni V.A. Steklova %D 1960 %V 15 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/RM_1960_15_4_a19/ %G ru %F RM_1960_15_4_a19