%0 Journal Article %A V. L. Selivanov %T Fine hierarchies of arithmetic sets, and definable index sets %J Matematičeskie trudy %D 1989 %P 165-185 %V 12 %I mathdoc %U http://geodesic.mathdoc.fr/item/MT_1989_12_a8/ %G ru %F MT_1989_12_a8