@misc{Schoeler2007,
  author    = {Klaus Sch{\"o}ler},
  title     = {Regional market areas at the EU border},
  institution = {Wirtschaftswissenschaften},
  series    = {Volkswirtschaftliche Diskussionsbeitr{\"a}ge},
  number    = {34},
  type      = {workingpaper},
  year        = {2007},
}