@INPROCEEDINGS{Mueller-ECMR-2007,
  author = {Mueller, {\relax St}effen and Schaffernicht, Erik and Scheidig, Andrea
    and Boehme, Hans-Joachim and Gross, Horst-Michael},
  title = {Are You Still Following Me?},
  booktitle = {Europ. Conf. on Mobile Robots (ECMR)},
  year = {2007},
  pages = {211--216},
  publisher = {Albert-Ludwigs-Universitaet Freiburg -- Universitaetsverlag}
}