@inproceedings{lorch:2002randa,
  author =	 {O. Lorch and J. {F. Seara} and K. H. Strobl and
                  U. D. Hanebeck and G. Schmidt},
  title =	 {{P}erception {E}rrors in {V}ision {G}uided
                  {W}alking: {A}nalysis, {M}odeling, and {F}iltering},
  booktitle =	 {Proceedings of the IEEE International Conference on
                  Robotics and Automation},
  month =	 {May},
  year =	 2002,
  address =	 {Washington DC, USA},
  pages =	 {2048--2053}
}