@article{02214413,
title = {Complete characterization of substitution invariant Sturmian sequences.},
journal = {Integers},
volume = {5},
year = {2005},
zbl = {1121.11020},
language = {en},
url = {http://dml.mathdoc.fr/item/02214413}
}
Baláz̆i, Peter; Masáková, Zuzana; Pelantová, Edita. Complete characterization of substitution invariant Sturmian sequences.. Integers, Tome 5 (2005) . http://gdmltest.u-ga.fr/item/02214413/