%0 Journal Article
%A Joseph Zaks
%T On four-colourings of the rational four-space.
%J Aequationes mathematicae
%D 1989
%P 259-266
%V 37
%N 2-3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/AM2_1989__37_2-3_137304/
%F AM2_1989__37_2-3_137304