%0 Journal Article
%A È. A. Golubov
%A M. V. Sapir
%T Varieties of finitely approximable semigroups
%J Doklady Akademii Nauk
%D 1979
%P 1037-1041
%V 247
%N 5
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1979_247_5_a1/
%G ru
%F DAN_1979_247_5_a1