%0 Journal Article
%A K.R. Ahre
%T On the closure of B1 [0,...)j.
%J Semigroup forum
%D 1986
%P 269-272
%V 33
%I mathdoc
%U http://geodesic.mathdoc.fr/item/SF_1986__33_134811/
%F SF_1986__33_134811