A note on the controllability for the wave equation in nonsmooth plane domains

@article{Bastos2006ANO,
  title={A note on the controllability for the wave equation in nonsmooth plane domains},
  author={W. D. Bastos and A. Spezamiglio},
  journal={Systems & Control Letters},
  year={2006},
  volume={55},
  pages={17-20}
}