@article{01309970,
title = {Deformation of chains via a local symmetric group action.},
journal = {The Electronic Journal of Combinatorics [electronic only]},
volume = {6},
year = {1999},
zbl = {0921.05062},
language = {en},
url = {http://dml.mathdoc.fr/item/01309970}
}
Hersh, Patricia. Deformation of chains via a local symmetric group action.. The Electronic Journal of Combinatorics [electronic only], Tome 6 (1999) . http://gdmltest.u-ga.fr/item/01309970/