@article{SLC_2001-2002_46_a0,
     author = {Helmut Prodinger},
     title = {On a {Functional-Difference} {Equation} of {Runyon,} {Morrison,} {Carlitz,} and {Riordan}},
     journal = {S\'eminaire lotharingien de combinatoire},
     year = {2001-2002},
     volume = {46},
     url = {http://geodesic.mathdoc.fr/item/SLC_2001-2002_46_a0/}
}