Verónica Becher, Eda Cesaratto. On the number of words with restrictions on the number of symbols. Adv. Appl. Math., 136:102321, 2022. [doi]
@article{BecherC22,
title = {On the number of words with restrictions on the number of symbols},
author = {Verónica Becher and Eda Cesaratto},
year = {2022},
doi = {10.1016/j.aam.2022.102321},
url = {https://doi.org/10.1016/j.aam.2022.102321},
researchr = {https://researchr.org/publication/BecherC22},
cites = {0},
citedby = {0},
journal = {Adv. Appl. Math.},
volume = {136},
pages = {102321},
}