@inproceedings{meyer_delius_et_al_icra11,
   author = {D. Meyer-Delius and M. Beinhofer and A. Kleiner and W. Burgard},
   title = {{Reducing the Ambiguity in the Environment by Placing
	Artificial Landmarks to Improve Mobile Robot Localization}},
   booktitle = {Proc. of the {IEEE} Int. Conf. on Robotics and Automation
	{(ICRA)}},
   address = {Shanghai, China},
   year = {2011},
   note = {(to appear)}
}