%0 Journal Article %A John E. Roberts %A Giuseppe Ruzzi %T A cohomological description of connections and curvature over posets %J Theory and applications of categories %D 2006 %P 855-895 %V 16 %I mathdoc %U http://geodesic.mathdoc.fr/item/TAC_2006_16_a29/ %G en %F TAC_2006_16_a29