%0 Journal Article
%A Kratochvíl, Jan
%T Perfect codes and two-graphs
%J Commentationes Mathematicae Universitatis Carolinae
%D 1989
%P 755-760
%V 30
%N 4
%I mathdoc
%U http://geodesic.mathdoc.fr/item/CMUC_1989__30_4_a17/
%G en
%F CMUC_1989__30_4_a17