%0 Journal Article %A A. A. Preobrazhenskii %T Stability of systems of generators of the algebra $C$ on manifolds %J Matematičeskie zametki %D 1970 %P 493-498 %V 8 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/MZM_1970_8_4_a8/ %G ru %F MZM_1970_8_4_a8