%0 Journal Article
%A N. N. Vorob'ev
%T A~constructive calculus of statements with strong negation
%J Trudy Matematicheskogo Instituta imeni V.A. Steklova
%D 1964
%P 195-227
%V 72
%I mathdoc
%U http://geodesic.mathdoc.fr/item/TM_1964_72_a5/
%G ru
%F TM_1964_72_a5