@INPROCEEDINGS{Volkhardt-SMC-2013b,
  author = {Volkhardt, Michael and Weinrich, {\relax Ch}ristoph and Gross, Horst-Michael},
  title = {People Tracking on a Mobile Companion Robot},
  booktitle = {IEEE Int. Conf. on Systems, Man, and Cybernetics (SMC)},
  year = {2013},
  pages = {4354--4359},
  publisher = {IEEE}
}