@article{05933966,
title = {Counting words by number of occurrences of some patterns.},
journal = {The Electronic Journal of Combinatorics [electronic only]},
volume = {18},
year = {2011},
zbl = {1227.05016},
language = {en},
url = {http://dml.mathdoc.fr/item/05933966}
}
Gao, Zhicheng; MacFie, Andrew; Panario, Daniel. Counting words by number of occurrences of some patterns.. The Electronic Journal of Combinatorics [electronic only], Tome 18 (2011) . http://gdmltest.u-ga.fr/item/05933966/