@ARTICLE{Poeschl-ZfEv-2009,
  author = {Poeschl, Sandra and Doering, Nicola and Boehme, Hans-Joachim and
    Martin, {\relax Ch}ristian},
  title = {Mensch-Roboter-Interaktion im Baumarkt -- Formative Evaluation eines
    mobilen Shopping-Roboters},
  journal = {Zeitschrift fuer Evaluation (ZfEv)},
  year = {2009},
  volume = {8},
  pages = {27--58},
  number = {1}
}