@article{SLC_2010_63_a0,
     author = {Marilena Barnabei and Flavio Bonetti and Matteo Silimbani},
     title = {The {Descent} {Statistic} on 123-avoiding {Permutations}},
     journal = {S\'eminaire lotharingien de combinatoire},
     publisher = {mathdoc},
     volume = {63},
     year = {2010},
     url = {http://geodesic.mathdoc.fr/item/SLC_2010_63_a0/}
}