Jorge Almeida, Mikhail V. Volkov. Subword Complexity of Profinite Words and Subgroups of Free Profinite Semigroups. IJAC, 16(2):221-258, 2006. [doi]
@article{AlmeidaV06,
title = {Subword Complexity of Profinite Words and Subgroups of Free Profinite Semigroups},
author = {Jorge Almeida and Mikhail V. Volkov},
year = {2006},
doi = {10.1142/S0218196706002883},
url = {http://dx.doi.org/10.1142/S0218196706002883},
researchr = {https://researchr.org/publication/AlmeidaV06},
cites = {0},
citedby = {0},
journal = {IJAC},
volume = {16},
number = {2},
pages = {221-258},
}