%0 Journal Article
%A Yu. G. Ventsov
%T The effective choice problem for relations and reducibilities
%J Algebra i logika
%D 1992
%P 101-118
%V 31
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/AL_1992_31_2_a0/
%G ru
%F AL_1992_31_2_a0