@inproceedings{Wieland2007,
  author    = {Joachim Wieland},
  title     = {Vertikale und diagonale Konzentration am Rundfunkmarkt},
  series = {Bitburger Gespr{\"a}che 48,2007},
  publisher = {Beck},
  address   = {M{\"u}nchen},
  isbn      = {978-3-406-57300-2},
  pages     = {133 -- 144},
  year      = {2007},
  abstract  = {.},
  language  = {de}
}