@article{SLC_2013-2014_70_a8,
     author = {Yuval Roichman},
     title = {A {Note} on the {Number} of {k-Roots} in {Sn}},
     journal = {S\'eminaire lotharingien de combinatoire},
     publisher = {mathdoc},
     volume = {70},
     year = {2013-2014},
     url = {http://geodesic.mathdoc.fr/item/SLC_2013-2014_70_a8/}
}