@article{HaCaEsMu14,
  author={J.-B. Hayet and H. Carlos and C. Esteves and R. Murrieta-Cid},
  title={Motion Planning for Maintaining Landmarks Visibility with a Differential Drive Robot},
  journal={Robotics and Autonomous Systems},
  month={April},
  pages={456--473},
  volume=62,
  number=4,
  year={2014}}