@article{01127119,
title = {A note on the distribution of the three types of nodes in uniform binary trees.},
journal = {S\'eminaire Lotharingien de Combinatoire [electronic only]},
volume = {36},
year = {1996},
zbl = {0886.05007},
language = {en},
url = {http://dml.mathdoc.fr/item/01127119}
}
Prodinger, Helmut. A note on the distribution of the three types of nodes in uniform binary trees.. Séminaire Lotharingien de Combinatoire [electronic only], Tome 36 (1996) . http://gdmltest.u-ga.fr/item/01127119/