%0 Journal Article %A B. Yu. Sternin %T On the regularization of equations of subprincipal type %J Trudy Matematicheskogo Instituta imeni V.A. Steklova %D 1982 %P 261-262 %V 37 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/RM_1982_37_2_a36/ %G en %F RM_1982_37_2_a36