%0 Journal Article
%A R. Routley
%A V. Routley
%T Negation And Contradiction.
%J Revista colombiana de matematicas
%D 1985
%P 201-232
%V 19
%I mathdoc
%U http://geodesic.mathdoc.fr/item/RCM_1985__19_181756/
%F RCM_1985__19_181756