%0 Journal Article
%A J.D. Lawson
%T Fields of tangent sets and Hofmann cones.
%J Semigroup forum
%D 1986
%P 1-28
%V 35
%I mathdoc
%U http://geodesic.mathdoc.fr/item/SF_1986__35_134853/
%F SF_1986__35_134853