%0 Journal Article
%A A. B. Khutoretskii
%T The power of the upper semilattice of computable numerations
%J Algebra i logika
%D 1971
%P 561-569
%V 10
%N 5
%I mathdoc
%U http://geodesic.mathdoc.fr/item/AL_1971_10_5_a6/
%G ru
%F AL_1971_10_5_a6