%0 Journal Article
%A P. Milnes
%A N. Hindman
%T The ideal structure of XX.
%J Semigroup forum
%D 1984
%P 41-52
%V 30
%I mathdoc
%U http://geodesic.mathdoc.fr/item/SF_1984__30_134703/
%F SF_1984__30_134703