Paliath Narendran, Colm Ó Dúnlaing, Friedrich Otto. It is undecidable whether a finite special string-rewriting system presents a group. Discrete Mathematics, 98(2):153-159, 1991. [doi]
@article{NarendranOO91,
title = {It is undecidable whether a finite special string-rewriting system presents a group},
author = {Paliath Narendran and Colm Ó Dúnlaing and Friedrich Otto},
year = {1991},
doi = {10.1016/0012-365X(91)90040-9},
url = {http://dx.doi.org/10.1016/0012-365X(91)90040-9},
tags = {graph-rewriting, rewriting},
researchr = {https://researchr.org/publication/NarendranOO91},
cites = {0},
citedby = {0},
journal = {Discrete Mathematics},
volume = {98},
number = {2},
pages = {153-159},
}