@incollection{WalzKoehler2006,
  author    = {Manfred Walz and Dennis K{\"o}hler},
  title     = {Perceiving, orientating and moving in urban spaces during night-time},
  series = {Motion, e-motion, urban space : 7. EAES conference in Dortmund},
  publisher = {Fachhochschule Dortmund},
  address   = {Dortmund},
  year      = {2006},
  language  = {en}
}