@article{SLC_1993_30_a10,
     author = {Giuseppe Pirillo},
     title = {Fibonacci {Numbers} and {Words}},
     journal = {S\'eminaire lotharingien de combinatoire},
     publisher = {mathdoc},
     volume = {30},
     year = {1993},
     url = {http://geodesic.mathdoc.fr/item/SLC_1993_30_a10/}
}