%0 Journal Article
%A A. A. Temirov
%T Concept of two-level

%J News of the Kabardin-Balkar scientific center of RAS
%D 2015
%P 183-191
%N 6-2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/IZKAB_2015_6-2_a28/
%G ru
%F IZKAB_2015_6-2_a28