@article{05660601,
title = {Probabilistic proofs of hook length formulas involving trees.},
journal = {S\'eminaire Lotharingien de Combinatoire [electronic only]},
volume = {61A},
year = {2009},
zbl = {1230.05045},
language = {en},
url = {http://dml.mathdoc.fr/item/05660601}
}
Sagan, Bruce E. Probabilistic proofs of hook length formulas involving trees.. Séminaire Lotharingien de Combinatoire [electronic only], Tome 61A (2009) . http://gdmltest.u-ga.fr/item/05660601/