%0 Journal Article
%A V. B. Kudryavtsev
%T On $S$-systems of functions of $k$-valued logic
%J Doklady Akademii Nauk
%D 1971
%P 20-22
%V 199
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1971_199_1_a3/
%G ru
%F DAN_1971_199_1_a3