@article{01498625,
title = {Counting lattice paths by Narayana polynomials.},
journal = {The Electronic Journal of Combinatorics [electronic only]},
volume = {7},
year = {2000},
zbl = {0953.05006},
language = {en},
url = {http://dml.mathdoc.fr/item/01498625}
}
Sulanke, Robert A. Counting lattice paths by Narayana polynomials.. The Electronic Journal of Combinatorics [electronic only], Tome 7 (2000) . http://gdmltest.u-ga.fr/item/01498625/