@misc{Andree2011,
  author    = {Kai Andree},
  title     = {Collusion in spatially separated markets with quantity competition},
  institution = {Wirtschaftswissenschaften},
  series    = {Volkswirtschaftliche Diskussionsbeitr{\"a}ge},
  number    = {104},
  type      = {workingpaper},
  year        = {2011},
}