Christian Choffrut, Tero Harju, Juhani Karhumäki. A Note on Decidability Questions on Presentations of Word Semigroups. Theoretical Computer Science, 183(1):83-92, 1997. [doi]
@article{ChoffrutHK97,
title = {A Note on Decidability Questions on Presentations of Word Semigroups},
author = {Christian Choffrut and Tero Harju and Juhani Karhumäki},
year = {1997},
doi = {10.1016/S0304-3975(96)00311-8},
url = {http://dx.doi.org/10.1016/S0304-3975(96)00311-8},
researchr = {https://researchr.org/publication/ChoffrutHK97},
cites = {0},
citedby = {0},
journal = {Theoretical Computer Science},
volume = {183},
number = {1},
pages = {83-92},
}