@INPROCEEDINGS{Boehme-ISR-2006,
  author = {Boehme, Hans-Joachim and Scheidig, Andrea and Wilhelm, Torsten and
    Schroeter, {\relax Ch}ristof and Martin, {\relax Ch}ristian and Koenig,
    Alexander and Mueller, {\relax St}effen and Gross, Horst-Michael},
  title = {Progress in the Development of an Interactive Shopping-Assistant},
  booktitle = {Joint Conf. on Robotics: Int. Symp. on Robotics (ISR) and German
    Conference on Robotics (ROBOTIK)},
  year = {2006},
  publisher = {VDI}
}