@INPROCEEDINGS{Gross-SMC-2008,
  author = {Gross, Horst-Michael and Boehme, Hans-Joachim and Schroeter, {\relax
    Ch}ristof and Mueller, {\relax St}effen and Koenig, Alexander and
    Martin, {\relax Ch}ristian and Merten, Matthias and Bley, Andreas},
  title = {{ShopBot}: Progress in Developing an Interactive Mobile Shopping
    Assistant for Everyday Use},
  booktitle = {IEEE Int. Conf. on Systems, Man, and Cybernetics (SMC)},
  year = {2008},
  pages = {3471--3478},
  publisher = {IEEE}
}