%0 Journal Article %A I. V. Kozin %T Approximation of probability measures by convex combinations of measures of spherically invariant processes %J Matematičeskie zametki %D 1981 %P 623-631 %V 29 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/MZM_1981_29_4_a13/ %G ru %F MZM_1981_29_4_a13