%0 Journal Article
%A Bożena Piekart
%A Andrzej Walendziak
%T On filters and upper sets in CI-algebras
%J Algebra and discrete mathematics
%D 2011
%P 109-115
%V 11
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/ADM_2011_11_1_a6/
%G en
%F ADM_2011_11_1_a6