%0 Journal Article
%A V. V. V'yugin
%T Certain examples of upper semilattices of computable numerations
%J Algebra i logika
%D 1973
%P 512-529
%V 12
%N 5
%I mathdoc
%U http://geodesic.mathdoc.fr/item/AL_1973_12_5_a1/
%G ru
%F AL_1973_12_5_a1