%0 Journal Article
%A Chajda, Ivan
%A Länger, Helmut
%T Congruence classes in Brouwerian semilattices
%J Discussiones Mathematicae. General Algebra and Applications
%D 2001
%P 229-237
%V 21
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DMGAA_2001_21_2_a7/
%G en
%F DMGAA_2001_21_2_a7