Martin Beaudry, Pierre McKenzie, Denis Thérien. The Membership Problem in Aperiodic Transformation Monoids. Journal of the ACM, 39(3):599-616, 1992. [doi]
@article{BeaudryMT92,
title = {The Membership Problem in Aperiodic Transformation Monoids},
author = {Martin Beaudry and Pierre McKenzie and Denis Thérien},
year = {1992},
doi = {10.1145/146637.146661},
url = {http://doi.acm.org/10.1145/146637.146661},
tags = {transformation},
researchr = {https://researchr.org/publication/BeaudryMT92},
cites = {0},
citedby = {0},
journal = {Journal of the ACM},
volume = {39},
number = {3},
pages = {599-616},
}