Robert Cori, Maria Rosaria Formisano. On the Number of Partially Abelian Square-Free Words on a Three-Letter Alphabet. Theoretical Computer Science, 81(1):147-153, 1991.
@article{CoriF91,
title = {On the Number of Partially Abelian Square-Free Words on a Three-Letter Alphabet},
author = {Robert Cori and Maria Rosaria Formisano},
year = {1991},
researchr = {https://researchr.org/publication/CoriF91},
cites = {0},
citedby = {0},
journal = {Theoretical Computer Science},
volume = {81},
number = {1},
pages = {147-153},
}