@article{02221806,
title = {A symmetric basis of the algebra of quasi-symmetric coinvariants. (Une base sym\'etrique de l'alg\'ebre des coinvariants quasi-sym\'etriques.)},
journal = {The Electronic Journal of Combinatorics [electronic only]},
volume = {12},
year = {2005},
zbl = {1074.05089},
language = {en},
url = {http://dml.mathdoc.fr/item/02221806}
}
Chapoton, Frédéric. A symmetric basis of the algebra of quasi-symmetric coinvariants. (Une base symétrique de l'algébre des coinvariants quasi-symétriques.). The Electronic Journal of Combinatorics [electronic only], Tome 12 (2005) . http://gdmltest.u-ga.fr/item/02221806/