Voir la notice de l'article provenant de la source Electronic Library of Mathematics
@article{JIS_2016__19_7_a1, author = {Prodinger, Helmut}, title = {Returns, hills, and $t$-ary trees}, journal = {Journal of integer sequences}, publisher = {mathdoc}, volume = {19}, number = {7}, year = {2016}, language = {en}, url = {http://geodesic.mathdoc.fr/item/JIS_2016__19_7_a1/} }
Prodinger, Helmut. Returns, hills, and $t$-ary trees. Journal of integer sequences, Tome 19 (2016) no. 7. http://geodesic.mathdoc.fr/item/JIS_2016__19_7_a1/