%0 Journal Article
%A N. Hindman
%A A.T. Lisan
%T Points very close to the smallest ideal of ßS.
%J Semigroup forum
%D 1994
%P 137-142
%V 49
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/SF_1994__49_2_135342/
%F SF_1994__49_2_135342