@incollection{K{\"o}hler2007,
  author    = {K{\"o}hler, Dennis},
  title     = {Character of urban spaces during night-time},
  series = {Convention proceedings : a milestone ; PLDC 1st global lighthing design conference, 24.-27. October, 2007 in London/UK},
  publisher = {VIA-Verlag},
  address   = {G{\"u}tersloh},
  pages     = {3},
  year      = {2007},
  language  = {en}
}