%0 Journal Article
%A S. D. Denisov
%T Structure of the upper semilattice of recursively enumerable

%J Algebra i logika
%D 1978
%P 643-683
%V 17
%N 6
%I mathdoc
%U http://geodesic.mathdoc.fr/item/AL_1978_17_6_a2/
%G ru
%F AL_1978_17_6_a2