@article{hal-00353515,
author = {Aval, Jean-Christophe},
title = {Quasi-symmetric functions and Catalan numbers.},
journal = {HAL},
volume = {2002},
number = {0},
year = {2002},
language = {en},
url = {http://dml.mathdoc.fr/item/hal-00353515}
}
Aval, Jean-Christophe. Quasi-symmetric functions and Catalan numbers.. HAL, Tome 2002 (2002) no. 0, . http://gdmltest.u-ga.fr/item/hal-00353515/