@article{05540834,
title = {Shape-Wilf-ordering on permutations of length 3.},
journal = {The Electronic Journal of Combinatorics [electronic only]},
volume = {14},
year = {2007},
zbl = {1158.05001},
language = {en},
url = {http://dml.mathdoc.fr/item/05540834}
}
Stankova, Zvezdelina. Shape-Wilf-ordering on permutations of length 3.. The Electronic Journal of Combinatorics [electronic only], Tome 14 (2007) . http://gdmltest.u-ga.fr/item/05540834/