Colm Ó Dúnlaing, Natalie Schluter. A shorter proof that palindromes are not a Church-Rosser language, with extensions to almost-confluent and preperfect Thue systems. Theoretical Computer Science, 411(3):677-690, 2010. [doi]
@article{ODunlaingS10,
title = {A shorter proof that palindromes are not a Church-Rosser language, with extensions to almost-confluent and preperfect Thue systems},
author = {Colm Ó Dúnlaing and Natalie Schluter},
year = {2010},
doi = {10.1016/j.tcs.2009.10.003},
url = {http://dx.doi.org/10.1016/j.tcs.2009.10.003},
researchr = {https://researchr.org/publication/ODunlaingS10},
cites = {0},
citedby = {0},
journal = {Theoretical Computer Science},
volume = {411},
number = {3},
pages = {677-690},
}