The Solution to the Word Problem for the Relatively Free Semigroups Satisfying TA = Ta+b with a ≥ 6

@article{McCammond1991TheST,
  title={The Solution to the Word Problem for the Relatively Free Semigroups Satisfying TA = Ta+b with a ≥ 6},
  author={Jonathan P. McCammond},
  journal={IJAC},
  year={1991},
  volume={1},
  pages={1-32}
}