@article{05686775,
title = {Counting abelian squares.},
journal = {The Electronic Journal of Combinatorics [electronic only]},
volume = {16},
year = {2009},
zbl = {1191.68479},
language = {en},
url = {http://dml.mathdoc.fr/item/05686775}
}
Richmond, L.B.; Shallit, Jeffrey. Counting abelian squares.. The Electronic Journal of Combinatorics [electronic only], Tome 16 (2009) . http://gdmltest.u-ga.fr/item/05686775/