%0 Journal Article
%A Chajda, Ivan
%A Länger, Helmut
%T Orthorings
%J Discussiones Mathematicae. General Algebra and Applications
%D 2004
%P 137-147
%V 24
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DMGAA_2004_24_1_a9/
%G en
%F DMGAA_2004_24_1_a9