%0 Journal Article
%A I. Sh. Kalimullin
%T Relative complements in $\Delta_2^0$-degrees with respect to enumerability
%J Algebra i logika
%D 2000
%P 547-566
%V 39
%N 5
%I mathdoc
%U http://geodesic.mathdoc.fr/item/AL_2000_39_5_a2/
%G ru
%F AL_2000_39_5_a2