@article{SLC_1985_13_a9,
     author = {Luigi Pezzoli},
     title = {Teorla delle matroidi sugli insiemi parzialmente ordinati},
     journal = {S\'eminaire lotharingien de combinatoire},
     publisher = {mathdoc},
     volume = {13},
     year = {1985},
     url = {http://geodesic.mathdoc.fr/item/SLC_1985_13_a9/}
}