@ARTICLE{Poeschl-ZfEv-2008,
  author = {Poeschl, Sandra and Doering, Nicole and Boehme, Hans-Joachim and
    Martin, {\relax Ch}ristian},
  title = {Computergestuetzte Artikelsuche im Baumarkt -- Formative Evaluation
    eines Artikelsuchsystems fuer mobile Shopping-Roboter},
  journal = {Zeitschrift fuer Evaluation (ZfEv)},
  year = {2008},
  volume = {7},
  pages = {113--135}
}