@article{05132826,
title = {On an identity for the cycle indices of rooted tree automorphism groups.},
journal = {The Electronic Journal of Combinatorics [electronic only]},
volume = {13},
year = {2006},
zbl = {1113.05050},
language = {en},
url = {http://dml.mathdoc.fr/item/05132826}
}
Wagner, Stephan G. On an identity for the cycle indices of rooted tree automorphism groups.. The Electronic Journal of Combinatorics [electronic only], Tome 13 (2006) . http://gdmltest.u-ga.fr/item/05132826/