@article{JIS_2001__4_1_a4,
     author = {Woan, Wen-Jin},
     title = {Hankel matrices and lattice paths},
     journal = {Journal of integer sequences},
     publisher = {mathdoc},
     volume = {4},
     number = {1},
     year = {2001},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/JIS_2001__4_1_a4/}
}