On the state complexity of reversals of regular languages

@article{Salomaa2004OnTS,
  title={On the state complexity of reversals of regular languages},
  author={Arto Salomaa and Derick Wood and Sheng Yu},
  journal={Theor. Comput. Sci.},
  year={2004},
  volume={320},
  pages={315-329}
}