@article{TAC_2006_16_a29,
     author = {John E. Roberts and Giuseppe Ruzzi},
     title = {A cohomological description of connections and curvature over posets},
     journal = {Theory and applications of categories},
     pages = {855--895},
     publisher = {mathdoc},
     volume = {16},
     year = {2006},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/TAC_2006_16_a29/}
}