@incollection{LeichtensternAndre2009,
  author    = {Karin Leichtenstern and Elisabeth Andr{\´e}},
  title     = {Studying multi-user settings for pervasive games},
  booktitle = {Proceedings of the 11th International Conference on Human-Computer Interaction with Mobile Devices and Services - MobileHCI '09, Bonn, Germany — September 15 - 18, 2009},
  editor    = {Reinhard Oppermann and Markus Eisenhauer and Matthias Jarke and Volker Wulf},
  isbn      = {9781605582818},
  doi       = {10.1145/1613858.1613891},
  year      = {2009},
}