@article{MuToHu05,
  author={R. Murrieta-Cid and B. Tovar and S. Hutchinson},
  title={A Sampling Based Motion Planning Approach to Maintain Visibility of Unpredictable Moving Targets},
  journal={Journal on Autonomous Robots},
  month={December},
  pages={285--300},
  volume=19,
  number=3,
  year={2005}}