%0 Journal Article
%A R. Downey
%A A. G. Melnikov
%T On realization of index sets in $\Pi_1^0$-classes
%J Algebra i logika
%D 2019
%P 659-663
%V 58
%N 5
%I mathdoc
%U http://geodesic.mathdoc.fr/item/AL_2019_58_5_a5/
%G ru
%F AL_2019_58_5_a5