@incollection{Timpf2006,
  author    = {Sabine Timpf},
  title     = {Wayfinding with mobile devices: decision support for the mobile citizen},
  booktitle = {Frontiers of Geographic Information Technology},
  editor    = {Sanjay Rana and Jayant Sharma},
  isbn      = {3540256857},
  doi       = {10.1007/3-540-31305-2_10},
  year      = {2006},
}