%0 Journal Article
%A R. E. Jamison
%T Tietze's convexity theorey for lattices and semilattices.
%J Semigroup forum
%D 1977
%P 357-374
%V 15
%I mathdoc
%U http://geodesic.mathdoc.fr/item/SF_1977__15_134267/
%G en
%F SF_1977__15_134267