author = {Gross, Horst-Michael and Schroeter, {\relax Ch}ristof and Mueller,
    {\relax St}effen and Volkhardt, Michael and Einhorn, Erik and Bley,
    Andreas and Martin, {\relax Ch}ristian and Langner, Tim and Merten,
  title = {Progress in Developing a Socially Assistive Mobile Home Robot Companion
    for the Elderly with Mild Cognitive Impairment},
  booktitle = {IEEE/RSJ Int. Conf. on Intelligent Robots and Systems (IROS)},
  year = {2011},
  pages = {2430--2437},
  publisher = {IEEE}