%0 Journal Article %A Marco Grandis %T Directed homotopy theory, II. Homotopy constructs %J Theory and applications of categories %D 2002 %P 369-391 %V 10 %I mathdoc %U http://geodesic.mathdoc.fr/item/TAC_2002_10_a13/ %G en %F TAC_2002_10_a13