%0 Journal Article
%A Radeleczki, Sándor
%T Classification systems and their lattice
%J Discussiones Mathematicae. General Algebra and Applications
%D 2002
%P 167-181
%V 22
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DMGAA_2002_22_2_a6/
%G en
%F DMGAA_2002_22_2_a6