%0 Journal Article %A A. S. Popeluhin %T Local solvability of pseudo-differential operators with double characteristics %J Vestnik Moskovskogo universiteta. Matematika, mehanika %D 1988 %P 75-77 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/VMUMM_1988_3_a23/ %G ru %F VMUMM_1988_3_a23