%0 Journal Article
%A R.J.MacG. Dawson
%A R. Pare
%A D.A. Pronk
%T Universal properties of Span
%J Theory and applications of categories
%D 2004
%P 61-85
%V 13
%I mathdoc
%U http://geodesic.mathdoc.fr/item/TAC_2004_13_a3/
%G en
%F TAC_2004_13_a3