%0 Journal Article
%A Úlehla, Josef
%T On racial insufficiency: White messengers cannot simulate coloured ones
%J Commentationes Mathematicae Universitatis Carolinae
%D 1985
%P 323-325
%V 26
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/CMUC_1985__26_2_a13/
%G en
%F CMUC_1985__26_2_a13