%0 Journal Article %A T. M. Kuz'mina %T The structure of $m$-degrees of index sets of families of partial recursive functions %J Algebra i logika %D 1981 %P 55-68 %V 20 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/AL_1981_20_1_a4/ %G ru %F AL_1981_20_1_a4