%0 Journal Article
%A Chajda, Ivan
%A Zelinka, Bohdan
%T Tolerances and congruences on implication algebras
%J Czechoslovak Mathematical Journal
%D 1988
%P 207-217
%V 38
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1988.102214/
%R 10.21136/CMJ.1988.102214
%G en
%F 10_21136_CMJ_1988_102214