@article{SLC_1997_39_a3,
     author = {Dominique Foata and Guo-Niu Han},
     title = {Inverses of {Words}},
     journal = {S\'eminaire lotharingien de combinatoire},
     publisher = {mathdoc},
     volume = {39},
     year = {1997},
     url = {http://geodesic.mathdoc.fr/item/SLC_1997_39_a3/}
}