@article{KnorrGroener,
  author    = {Andreas Knorr and Helmut Gr{\"o}ner},
  title     = {Monopol f{\"u}r Postdienste und EG-Binnenmarkt},
  series = {Hamburger Jahrbuch f{\"u}r Wirtschafts- und Gesellschaftspolitik},
  volume    = {36},
  editor    = {Heinz-Dietrich Ortlieb},
  publisher = {Mohr},
  address   = {T{\"u}bingen},
  pages     = {109 -- 133},
  abstract  = {.},
  language  = {de}
}