@article{SLC_1990_23_a3,
     author = {Marie-Pierre Delest and Jean-Marc F\'edou},
     title = {Enumeration of {Skew} {Ferrers} {Diagrams}},
     journal = {S\'eminaire lotharingien de combinatoire},
     publisher = {mathdoc},
     volume = {23},
     year = {1990},
     url = {http://geodesic.mathdoc.fr/item/SLC_1990_23_a3/}
}