@inproceedings{beinhofer11ecmr,
  author = {Beinhofer, M. and M{\"u}ller, J. and Burgard, W.},
  title = {Landmark Placement for Accurate Mobile Robot Navigation},
  booktitle = {Proc.~of the European~Conf.~on Mobile Robots (ECMR)},
  address = {{\"O}rebro, Sweden},
  month = {September},
  year = {2011},
  pages = {55-60},
  url = {http://ais.informatik.uni-freiburg.de/publications/papers/beinhofer11ecmr.pdf},
}