Dominique Perrin, Christophe Reutenauer. Graded alphabets, circular codes, free Lie algebras and comma-free codes. Discrete Mathematics, 344(1):112167, 2021. [doi]
@article{PerrinR21,
title = {Graded alphabets, circular codes, free Lie algebras and comma-free codes},
author = {Dominique Perrin and Christophe Reutenauer},
year = {2021},
doi = {10.1016/j.disc.2020.112167},
url = {https://doi.org/10.1016/j.disc.2020.112167},
researchr = {https://researchr.org/publication/PerrinR21},
cites = {0},
citedby = {0},
journal = {Discrete Mathematics},
volume = {344},
number = {1},
pages = {112167},
}