%0 Journal Article
%A M. I. Kanovitch
%T Irreducibility of the languages of a step-by-step semantic system
%J Doklady Akademii Nauk
%D 1973
%P 800-803
%V 212
%N 4
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1973_212_4_a4/
%G ru
%F DAN_1973_212_4_a4