@article{SLC_2017_78B_a48,
     author = {Kassie Archer and Sergi Elizalde and Katherine Moore},
     title = {Patterns of {Negative} {Shifts} and {Signed} {Shifts}},
     journal = {S\'eminaire lotharingien de combinatoire},
     publisher = {mathdoc},
     volume = {78B},
     year = {2017},
     url = {http://geodesic.mathdoc.fr/item/SLC_2017_78B_a48/}
}