%0 Journal Article
%A G.T. Sallee
%T Invertible Relations on Polytopes.
%J Discrete & computational geometry
%D 1987
%P 395-400
%V 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DCG_1987__2_131030/
%F DCG_1987__2_131030