%0 Journal Article
%A S. S. Marchenkov
%T Positive closed classes in the three-valued logic
%J Diskretnyj analiz i issledovanie operacij
%D 2014
%P 67-83
%V 21
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DA_2014_21_1_a5/
%G ru
%F DA_2014_21_1_a5