@article{SLC_2017_78B_a66,
     author = {Voula Collins},
     title = {A {Puzzle} {Formula} for {H*T} x {Cx(T*Pn)}},
     journal = {S\'eminaire lotharingien de combinatoire},
     year = {2017},
     volume = {78B},
     url = {http://geodesic.mathdoc.fr/item/SLC_2017_78B_a66/}
}