%0 Journal Article
%A V. E. Kuznetsov
%T $K$-systems
%J Doklady Akademii Nauk
%D 1983
%P 815-816
%V 273
%N 4
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1983_273_4_a10/
%G ru
%F DAN_1983_273_4_a10