@INPROCEEDINGS{Kessler-IROS-2012,
  author = {Kessler, Jens and Iser, Daniel and Gross, Horst-Michael},
  title = {I'll Keep You in Sight: Finding a Good Position to Observe a Person},
  booktitle = {IEEE/RSJ Int. Conf. on Intelligent Robots and Systems (IROS)},
  year = {2012},
  pages = {4392--4398},
  publisher = {IEEE}
}